Circulation and Back Flashcards
Plasma moves from the arterial capillaries into tissue due to
hydrostatic and blood pressure
Plasma moves from tissue back into venous capillaries due to
osmotic pressure
The diffusion of water from an area with a high water concentration to an area of lower water concentration is
osmosis
What causes the high osmotic pressure of blood?
The solutes and proteins present in the plasma (proteins can’t cross membranes)
These three areas of the body do not have lymphatic capillaries:
the CNS (has CSF instead), bone marrow, and any tissues without blood vessels (cartilage, epidermis of skin, cornea of eye)
Lymphatic capillaries are ___ permeable than blood capillaries
MORE
Lymph is filtered before it returns to the venous system using the
lymph nodes
The jugular trunks of the lymphatic system drain:
head and neck
The subclavian trunks of the lymphatic system drain:
upper limbs, outside of the thoracic wall, lateral portions of the breasts
The bronchomediastinal trunks of the lymphatic system drain:
lungs, thoracic organs, internal thoracic wall, medial portions of the breasts
The intestinal trunks of the lymphatic system drain:
abdominal organs and inside of abdominal wall
The lumbar trunks of the lymphatic system drain:
lower limbs, pelvis
The lumbar and intestinal trunks, as well as the left bronchomediastinal, left subclavian, and left jugular trunks drain into
the thoracic duct
The thoracic duct empties back into the venous system via
the left venous angle (where the left subclavian vein and internal jugular vein join to form the left brachiocephalic vein)
The right jugular, right subclavian, and right bronchomediastinal trunks empty lymph back into the venous system separately via
either the right subclavian vein or right brachiocephalic vein
Located at the origin of the thoracic duct, the _____ receives lymph from the lumbar and intestinal trunks
chyle cistern
The lymph from the lower back drains into the
lumbar trunks
The inferior and middle intercostal trunks, which run parallel to the posterior intercostal vessels inferior to the ribs, drain into _____ from both sides
thoracic duct
The superior intercostal collecting trunks drain into _____ ipsalaterally
bronchomediastinal trunks
Lymph from the head and neck drains into the _____ ipsalaterally
jugular trunks
The lateral portion of the breast drains lymph to the ___ and ____ lymph nodes, as well as the ____ trunk
axillary and clavicular; subclavian
The medial portion of the breast drains lymph to the ___ lymph nodes and the _____ trunk
parasternal; bronchomediastinal
The inferior portion of the breast drains lymph to the ____ lymph nodes and the trunk
inferior phrenic; intestinal
The upper limb drains lymph into the ____ lymph nodes and the _____ trunk
axillary; subclavian
The descending aorta provides the start of the arteries to supply the back-what are the two arteries at each vertebral level through T12?
The right and left posterior intercostal arteries
The intercostal arteries also divide into dorsal and ventral branches-which branch supplies the muscles, skin, vertebrae, and spinal cord of the back?
the dorsal branch of each posterior intercostal artery
The abdominal aorta continues the arterial supply of the back by providing
the right and left lumbar arteries (5 on each side)
Each lumbar artery divides into two branches to supply the rest of the back-which branch supplies the lower back?
The dorsal branch of the lumbar arteries
The external vertebral venous plexus is located
outside the vertebrae
The internal vertebral venous plexus is located
within the vertebral foramen
The intervertebral veins are
between the plexuses
The vertebral plexuses drain into
the intervertebral veins
The intervertebral veins drain into ___ in the thorax and ____ in the abdomen
posterior intercostal veins; lumbar veins
