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232 Cards in this Set

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  • Back
what is the largest artery leaving the heart and heading to the body?
aorta
name the three parts of the aorta
ascending aorta
aortic arch
descending aorta
what structures branch off the ascending aorta and what are their function?
right and left coronary arteries
supply blood to the heart
what three structures branch off the aortic arch?
brachiocephalic artery
left common carotid artery
left subclavian artery
what does the brachocephalic artery split into and where does the split occur
common carotid artery
right subclavian artery
just posterior to right sternoclavicular joint
what does the carotid artery split into and where?
internal carotid arteries
external carotid arteries
C4 - level with thyroid cartilage
what does the subclavian artery branch into?
vertebral artery
thyrocervical
costocervical
1-2 posterior intercostals
internal thoracic
anterior intercostal
when does the descending aorta become the thoracic aorta?
as it descends through the thorax
when does the descending aorta become the abdominal aorta?
after it travels through the diaphragm and enters the abdomen and pelvis
what is the outer layer of arteries/veins called?
tunica adventitia
what is the middle layer of arteries/veins called?
tunica media
what is the inner layer of arteries/veins called?
tunica intima
name the three types of arteries
elastic
muscular
arterioles
which type of artery is large in diameter and contain mostly elastin in tunica media?
elastic
describe a muscular artery
smaller diameter than elastic
contain more smooth muscle than elastin
which type of artery is the smallest in diameter and contain mostly smooth muscle?
arterioles
what type of cells make up the tunica intima?
squamous
describe the composition of the tunica adventitia
collagen fibres
protects, anchors
what do venules do?
transport blood from tissues to larger veins
describe the composition of a venule and what is the benefit of this make up?
thin tunica intima
thin tunica adventitia
allows ease of movement of fluids
describe the composition of veins
thicker tunica adventitia
thin tunica media
large lumen and valves
what three things aid venous return?
skeletal muscle contraction
breathing
valves
how thick are capillaries?
one cell thick
what are the three types of capillaries?
continuous
fenestrated
sinusoidal
how are continuous capillaries joined?
tight junctions
where would you find continuous capillaries?
in skin, muscles, brain
describe a fenestrated capillary
large pores covered by a network of proteins
where would you find fenestrated capillaries?
areas requiring absorption or secretion such as the intestines of endocrine glands
what do fenestrasted capillaries allow?
flow of larger organic molecules and high fluid volumes into interstitial space
what do sinusoidal capillaries allow?
passage of proteins and blood cells into the interstitial space
where would you find sinusoidal capillaries?
organs where passage of large particles is necessary such as the liver, bone marrow and lymphoid tissue
what are the two components of the capillary bed?
vascular shunt
true capillaries
what does a vascular shunt connect?
an arteriole and venuole
where would you find pre-capillary sphincters?
between the shunt channel and capillaries
what is the purpose of pre-capillary sphincters?
they constrict the lumen and help to direct blood by shutting down areas that don't require blood flow
how much lymph fluid is produced daily?
3 - 4 liters
describe the general course of lymph flow
lymph capillaries
collecting vessels
trunks
ducts
what assists lymphatic return?
breathing / pressure changes
skeletal muscle contraction
valves
tissue movement
what type of blood do pulmonary arteries carry?
deoxygenated
what type of blood do pulmonary veins carry?
oxygenated
name the two components of the circulatory system
cardiovascular
lymphatic
what are the components of the cardiovascular system?
systemic
pulmonary
coronary
which area of the heart is the largest?
the left ventricle
describe blood flow in the cardiovascular system
right atrium
right ventricle
pulmonary trunk/arteries
lungs
pulmonary veins
left atrium
left ventricle
aorta
arteries
arterioles
capillary beds
venules
veins
vena cava
right atrium
which three structures prevent backflow of blood?
papillary muscles
valves
chordae tendinae
which structure does the coronary circulation arise from?
aorta
which heart structure is the first to receive blood?
myocardium
the coronary circulation begins at what two arteries?
right coronary
left coronary
the right coronary artery splits into?
marginal artery
posterior interventricular artery
which areas of the heart are supplied by the right coronary artery?
right lateral aspect
right and left ventricles (posterior)
the left coronary artery divides into?
anterior interventricular artery
circumflex artery
describe the path of the anterior interventricular artery
travels down to the anterior walls of the ventricles and then anastomoses with the posterior interventricular artery
describe the pathway of the circumflex artery
travels do the posterior aspect of the left atrium and left ventricle. It then anastomoses with the right coronary artery
what structure drains the area supplied by the left coronary artery?
great cardiac vein
which structures drain the area supplied by the right coronary artery?
middle cardiac vein
small cardiac vein
which structure of the coronary circulation drains directly into the right atrium?
coronary sinus
list the branches of the external carotid arteries
superior thyroid
lingual
facial
occipital
maxillary
superficial temporal
describe the pathway of the common carotid arteries
ascend through the neck in the anterior cervical triangle
what structures are supplied by the superior thyroid artery?
thyroid gland
SCM
infrahyoid muscles
what do the lingual arteries supply?
the tongue
describe the pathway of the facial artery
travels up along the inferomedial mandible
crosses the mandible just anterior to the insertion of masseter
what does the facial artery supply?
skin and muscles of the face
describe the pathway of the occipital artery
travels to the occipital region and over the superior nuchal line between the attachments of SCM and trapezius
what does the occipital artery supply?
skin and muscles of the occipital region
describe the pathway of the maxillary artery
travels behind mandibular condyle
passes anterior to lateral pterygoid to the temporal fossa
what does the maxillary artery supply?
muscles of mastication
teeth
nasal cavity
calvaria
describe the pathway of the superficial temporal artery
posterior to parotid gland
up to temporal fossa
crosses zygomatic bone just anterior to ear
what does the superficial temporal artery supply?
skin of most of the scalp
list the branches of the internal carotid arteries
opthalamic
middle cerebral
anterior cerebral
which structure does the opthalamic nerve pass through and what else does it travel with?
the optic canal
with CN II (Optic)
what does the opthalamic artery supply?
the orbit and its contents (muscles, eyeball, lacrimal gland)
which arteries supply blood to approximately 80% of the brain?
middle and anterior cerebral arteries
what is supplied by the thyrocervical trunk?
thyroid gland
scapular muscles
muscles of the posterior triangle
what is supplied by the costocervical trunk?
muscles of the first 2 intercostal spaces
deep posterior cervical muscles
describe the pathway of vertebral arteries
pass through transverse foramen of cervical vertebrae
run medially across superior aspect of C1
what is the relationship of the vertebral arteries to the brain stem?
they travel on the anterior aspect of the brain stem
what do vertebral arteries supply?
vertebrae and spinal cord
what forms the basilar artery?
unification of left and right vertebral arteries
the circle of willis is an anastomosis of what structures?
posterior cerebral arteries
middle cerebral arteries
anterior cerebral arteries
what does the circle of willis ensure?
adequate blood supply to the brain if something blocks one of the arteries
what does the basilar artery supply?
most of the occipital region of the brain
what is supplied by the middle cerebral artery?
temporal and parietal regions of the brain
what is supplied by the anterior cerebral artery?
the frontal region of the brain
which arteries travel laterally on the first rib posterior to the anterior scalene, between the anterior and middle scalenes?
the subclavian arteries
where does the subclavian artery become the axillary artery?
as it passes the lateral edge of the first rib
how far does the axillary artery go before it changes its name, and what name does it take?
travels to the inferior border of teres minor
there it becomes the brachial artery
list the branches of the axillary artery
thoracoacromial artery
lateral thoracic artery
subscapular artery
anterior circumflex humeral
posterior circumflex humeral
thoracoacromial artery
B: axillary artery
L: deep to pectoralis major
S: deltoid and pectoralis muscles
lateral thoracic artery
B: axillary artery
L: lateral to pectoralis minor ; decends along its lateral edge
S: pectoralis muscles
subscapular artery
B: axillary artery
L: descends inferiorly along lateral aspect of scapula
S: scapular muscles, latissiumus dorsi
anterior circumflex artery
B: axillary artery
L: wraps around surgical neck of humerus
S: deltoid, triceps, GH joint
posterior circumflex artery
B: axillary artery
L: wraps around surgical neck of humerus ; travels through quadrangle space with the axillary nerve
S: deltoid, triceps, GH joint
the brachial artery is a continuation of...
the axillary artery
where does the brachial artery begin?
the inferior border of teres major
which artery travels through the cubital fossa?
the brachial artery
which artery descends on the medial side of the humerus between biceps brachii and triceps brachii?
the proximal portion of the brachial artery
describe the pathway of the brachial artery at the elbow
passed anteriorly into cubital fossa
lies on medial side of biceps tendon
which artery would you find deep to brachioradialis?
radial artery
describe the relationship of the the radial artery to the flexor carpi radialis tendon
superficial
lateral
what does the radial artery supply?
elbow
wrist extensors
hand muscles
what are the branches of the radial artery?
palmar and dorsal arches of the hand
which artery would you find superficial to the flexor retinaculum?
ulnar artery
which artery would you find lateral to pisiform?
ulnar artery
what does the ulnar artery supply?
elbow
forearm flexors
muscles of the hand
what does the ulnar artery branch into?
palmar arches
where would you find the proximal portion of the ulnar artery?
deep to superficial wrist flexors
travels along flexor digitorum profundus
describe the distal pathway of the radial artery
at the wrist it turns posterior and lateral and enters the suffbox
what structure extends from the the aortic arch to the aortic hiatus in the diaphragm?
descending aorta
describe the course of the abdominal aorta
extends inferiorly from aortic hiatus
travels to the level of L4 (iliac crest)
bifurcates into common iliac arteries
both the thoracic and abdominal aorta have what two branches?
parietal
visceral
which aortic branch supplies blood to somatic structures (bones, muscles etc)
parietal
the visceral branch of the aorta supply...
visceral structures (internal organs)
how many pairs of posterior intercostal arteries are there?
11
where do the intercostal and subcostal arteries travel?
through intercostal spaces
posterior intercostal / subcostal arteries
B: costocervical trunks (1 - 2) ; thoracic aorta (3 - 12)
S: deep back muscles, spinal cord, vertebrae, skin of back
anterior intercostal arteries
B: internal thoracic arteries
S: superior 9 intercostal spaces (skin and muscles)
what supplies blood to the diaphragm and where does it branch from?
superior phrenic arteries
branches off the thoracic aorta
which spinal segments are spanned by the thoracic aorta?
T5 - T12
which spinal segments are spanned by the abdominal aorta?
T12 - L4
the abdominal aorta gives rise to the abdominal arteries. Name them
inferior phrenic
celiac trunk
suprarenal
superior mesenteric
renal
gonadal
inferior mesenteric
lumbar
median sacral
common iliac
inferior phrenic
paired
inferior surface of diaphragm
celiac trunk
unpaired
common hepatic arter
left gastric artery
splenic artery
suprarenal artery
paired
S: suprarenal glands (adrenal)
superior mesenteric artery
unpaired
S: small intestine
renal artery
paired
S: the kidneys
gonadal artery
paired
S: testes, ovaries
inferior mesenteric artery
unpaired
S: distal large intestine, rectum
lumbar artery
four pairs
S: posterior abdominal wall, erector spinae, spinal cord
median sacral artery
unpaired
S: sacrum, coccyx
common iliac artery
pair
S: pelvis and lower limbs
the common iliac arteries branch into...
internal iliac arteries
external iliac arteries
what do the internal iliac arteries supply?
the pelvis
what do the external iliac arteries supply?
the lower limb
name the branches of the internal iliac artery
superior gluteal
inferior gluteal
obturator artery
internal pudendal artery
which arteries pass through the greater sciatic foramen?
superior gluteal
inferior gluteal
internal pudendal
what is the relationship between the superior gluteal artery and the piriformis?
it passes above the piriformis
what is the relationship between the inferior gluteal artery and the piriformis?
it passes below the piriformis
which artery passes through the obturator foramen?
obturator artery
where does the external iliac artery enter the thigh?
inferior to the midline of the inguinal ligament
where does the external iliac artery become the femoral artery?
after it crosses the inguinal ligament
which artery travels through the adductor canal?
femoral artery
where does the femoral exit the adductor canal?
through the adductor hiatus
list the branches of the femoral artery and what they supply
medial / lateral circumflex femoral (hip joint)
femoral branches (anterior thigh mm)
deep femoral (posterior thigh mm)
the femoral artery passes through the adductor hiatus and becomes?
the popliteal artery
the popliteal artery branches into?
anterior tibial artery
posterior tibial artery
anterior tibial artery
B: popliteal artery
S: anterior leg extensors
posterior tibial artery
B: popliteal artery
S: posterior leg flexors
fibular artery
B: posterior tibial artery
S: lateral compartment leg muscles
when the anterior tibial artery enters the foot it changes its name to?
dorsalis pedis artery
which artery gives rise to the medial plantar and lateral plantar arteries?
the posterior tibial artery
which artery supplies the dorsal foot?
arcuate (branch from dorsalis pedis)
which artery supplies the medial foot?
medial plantar artery
which artery supplies the toes?
plantar arch (from the lateral plantar artery)
the lateral plantar arteries anastomose with?
dorsalis pedis artery
the plantar arch anastomoses with?
arcuate artery
external jugular vein
Drains: superficial head structures
Location: crosses SCM
Joins: subclavian veins
vertebral veins
Drains: vertebrae, spinal cord, deep cervical spine muscles
Location: descends in transverse foramen
Joins: brachiocephalic vein
internal jugular veins
Drains: most of the blood from the brain, head, neck
Location: descends with the internal carotic artery
Joins: brachiocephalic vein
list the major sinuses of the head
superior sagittal
inferior sagittal
straight
transverse
cavernous
blood from the face pools in which sinus?
cavernous (via facial and opthalmic veins)
where do venous sinuses of the head eventually drain?
internal jugular vein
radial vein
From: palmar venous arches
Travels: deep to brachioradialis with radial artery
Joins: brachial artery
ulnar vein
From: palmar venous arches
Travels: with ulnar artery
joins: brachial artery
brachial vein
From: unification of ulnar and radial veins
Travels: ascends medial brachium with brachial artery
becomes axillary vein and subclavian vein
list the deep veins of the arm
radial
ulnar
brachial
list the superficial veins of the arm
cephalic
basilic
median vein
cephalic vein
travels: superiorly along lateral brachium to shoulder
Joins: axillary vein
basilic vein
travels: posteromedial forearm, crosses elbow and travels more deeply
the basilic vein joins which two veins?
brachial
cephalic
median vein of the forearm
travels: between radial and ulnar veins
ends: near elbow where it joins basilic or cephalic vein
list three general characteristics of lymph capillaries
highly permeable
anchored by protein filaments
porous for passage of proteins and cellular debris
list the five major lymphatic ducts
lumbar
broncho-mediastinal
subclavian
jugular
intestinal
list the paired lymphatic ducts
lumbar
broncho-mediastinal
subclavian
jugular
list the unpaired lymphatic ducts
intestinal
the lumbar lymphatic duct drains......
lower limbs
the broncho-mediastinal lymphatic duct drains......
thorax
the subclavian lymphatic duct drains......
upper limb
the jugular lymphatic duct drains......
head and neck
the intestinal lymphatic duct drains......
digestive tract
list the two lymphatic ducts
right lymphatic ducts
thoracic duct
the thoracic lymphatic duct drains which lymphatic trunks?
lumbar
intestinal
left broncho-mediastinal
left subclavian
left jugular
the right lymphatic duct drains which lymphatic trunks?
right broncho-mediastinal
right subclavian
right jugular
what internal fibrous structure provides the 'skeleton' for the lymphnodes?
medullary cords
where would you find macrophages in a lymph node?
in the medulla in large sinuses
what types of cells would you find in the cortex of lymph nodes?
immune cells that produce antibodies
list the four lymph node organs (other than the lymph nodes).
spleen
thymus
tonsils
MALT
where would you find the spleen?
left hypocondraic region
posterior to the stomach
what are the functions of the spleen?
lymphocyte production
platelet storage
breakdown of old RBCs
extract debris, bacteria and viruses
where would you find the thymus?
mediastinum deep to the sternum
how many glands make up the tonsils?
four
what is the function of the tonsils?
trap inhaled or ingested foreign matter
which four structures make up MALT?
tonsils
peyers patches
appendix
bronchial lymphnoid nodules
list the veins of the azygos system
azygos
hemiazygos
accessory hemiazygos
the azygos system receives blood from where?
lumbar veins
thorax
the azygos vein drains which structures?
right abdominal wall
right posterior thorax
right lung
the blood travelling in the azygos vein ends up where?
directly in the superior and inferior vena cava
the azygos vein is fed by which two veins?
right lumbar
right posterior intercostal
which area of the body is drained by the hemiazygos?
the left side of the abdominal wall
the hemiazygos vein is fed by which veins?
left vertebral
left posterior intercostal
which spinal level marks the end of the hemiazygos vein?
T9
the blood carried by the hemiazygos vein ends up in which structure?
the azygos vein
the accessory hemiazygos vein drains which area of the body and which structures?
left posterior thorax
left lung
the accessory hemiazygos vein is a continuation of which structure?
it is a superior continuation of the hemiazygos vein
the accessory hemiazygos vein joins up with / drains into which vein?
anastomoses with the azygos vein
list the superficial veins of the lower limb
great saphenous
small saphenous
which vein is the longest in the body?
great saphenous
describe the pathway of the great saphenous vein
medial leg and thigh
through saphenous opening in fascia lata
the saphenous vein drains into?
femoral vein
describe the pathway of the small saphenous vein
lateral leg
between the heads of gastrocnemius
the small saphenous vein drains into?
popliteal veins
describe the pathway of the fibular vein
ascends lateral compartment
where does the fibular vein drain?
posterior tibial vein
distal to the knee
describe the pathway of the anterior tibial vein
ascends anterior compartment
pierces the interosseous membrane
unites with posterior tibial vein
the anterior tibial vein drains into?
popliteal vein
describe the pathway of the posterior tibial vein
ascends posterior compartment
receives fibular vein
the posterior tibial vein drains into?
popliteal vein
describe the pathway of the popliteal vein
travels through adductor hiatus
the popliteal vein drains into?
femoral vein
describe the pathway of the femoral vein
passes deep to the inguinal ligament
the femoral vein drains into?
external iliac vein
the internal iliac vein drains...?
the pelvis
the external iliac vein drains...?
lower limbs
the internal and external iliac veins join...?
common iliac veins
the common iliac veins joins...?
inferior vena cava
which vein drains the digestive tract?
hepatic portal veins
which vein drains the liver?
the hepatic portal system
hepatic veins
which vein drains the adrenal glands?
the suprarenal veins
which vein drains the kidneys?
the renal veins
which vein drains the testes/ovaries?
gonadal veins
which vein drains the posterior abdominal wall?
lumbar veins
what is the roll of the hepatic portal systems / veins in digestion?
it drains the intestines
the liver processes the nutrients and the hepatic veins take the blood to the heart where it will then be sent into systemic circulation carrying the nutrients to the body
the hepatic vein drains where?
the inferior vena cava