Circ. systems: Anatomy & Elearning Flashcards
which layer of the blood vessels is innervated by the sympathetic nerves?
tunica media
what are tunica intima, media and adventita made from?
tunica intima: one layer of endothelial cells, supported by internal elastic lamina
tunica media: collagen, elastin and smooth muscle cells
tunica adventitia: collagen (in arteries: external elasatic lamina)
what are the precapillary sphincters?
precapillary sphincters: the point where each of the capillaries originates from an arteriole, a smooth muscle fiber encircles the capillary
label 1-8
1: coronary arteries
2: ascending aorta
3. aortic arch
4. brachiocephalic trunk
5. left common carotid artery
6. left subclavian artery
7. right common carotid artery
8. righ subclavian artery
what is the structure that surrounds the heart?
the perichardium
label 1-7
1: right subclavian artery
2: left subclavian artery
3: brachiocephalic trunk
4: aortic arch
5: right common carotid artery
6: descending aorta
7 left common carotid artery
artery in the palm of hand called?
superficial palmar arch
label these 1-3 (1 = top)
all unpaired!!
1: coeliac trunk
2: superior mesenteric artery
3: inferior mesenteric artery
what do each of the following supply?
1: coeliac trunk
2: superior mesenteric artery
3: inferior mesenteric artery
1: coeliac trunk: foregut of GI tract
2: superior mesenteric artery: organs of the midgut: duodenum to proximal 2/3 or transverse colon
3: inferior mesenteric artery: organs of the hindgut
which unpaired artery supplies:
a) spleen
b) stomach
c) pancreas
d) duodenum
e) jujeum
f) sigmoid colon
g) ascending
and
h) descending colon
a) spleen: coeliac trunk
b) stomach: coeliac trunk
c) pancreas: superior mesenteric artery
d) duodenum: coeliac trunk
e) jujenum: superior mesenteric artery
f) sigmoid colon: inferior mesenteric artery
g) ascending: superior mesenteric artery
and
h) descending colon: inferior mesenteric artery
name this artery
dorsal pedis artery
name this artery
posterior tibial artery
name this artery
profunda femoris artery
what is this artery? shows the back of the knee
popliteal artery
this artery?
femoral artery
label 1-3
(superficial veins)
1: cephalic vein
2: basilic vein
3: median cubital vein
label these superificial veins of the lower limb
1: greater saphenous vein
2: lesser spahenous vein
Which anatomical landmark marks the transition from the femoral vein to the external iliac vein?
inguinal ligament
how does lymph move around the body?
the lymphatics do not have a central pump so the lymph moves by contraction of surrounding skeletal muscles and the pulse action of the nearby arteries.
what is spleens role in the lympahtic system?
Functions mainly as a blood filter, removing old red blood cells. It also plays a role in the immune response.
what does thymus do in lympahtic system
what does red bone marrow do in lymphatic system/
thymus: Responsible for the development and maturation of T lymphocyte cells.
Red bone marrow: Responsible for maturation of immature lymphocytes.
what do lymph nodes do?
lymph nodes that make immune cells that help the body fight infection. They also filter the lymph fluid and remove foreign material such as bacteria and cancer cells.
what are the two main systems of lymph vessles?
Superficial vessels – arise in the subcutaneous tissue, and tends to accompany venous flow. They eventually drain into deep vessels.
Deep vessels – drain the deeper structures of the body, such as the internal organs.
where do the lymph vessels empty?
right lymphatic duct and the thoracic duct. These two ducts then empty into the venous circulation at the subclavian veins, via the right and left venous angles.
