G.A cardiovascular & lymph system

Question 1

How many beats does the heart avg.? mL?

Answer 1

75 beats per minute; 70-80 mL per beat!

Question 2

Right atrium has? receives? which valve?

Answer 2

right auricle (little ear)
pectinate muscles
crista terminalis
- recieves deoxygenated blood from IVC
- tricuspid valve going from RA to RV

Question 3

Right ventricle has?

Answer 3

is most of anterior surface
has trabeculae carnae
-receives from RA
-blood goes through semilunar valve to pulmonary arteries (deoxy. blood) to the lungs

Question 4

Left atrium receives? valve?

Answer 4

has oxygen rich blood from lungs via 4 pulmonary veins
most of posterior surface of heart
bicuspid valve to LV (mitral valve)- chorda tendinea, Papillary muscles

Question 5

Left ventricle has? pumps to?

Answer 5

Apex of heart
Inferior surface of heart
trabeculae carnae
pumps to Aorta- therefore rest of body

Question 6

what separates the ventricles?

Answer 6

interventricular septum

Question 7

where is Apex located?

Answer 7

5th intercostal space, near diaphragm

Question 8

Branches off the external carotid

Answer 8

sup thyroid
ascending pharyngeal
lingual
facial
occipital
post auricular
Terminates: superficial temporal arteries & maxillary
"Save A Lady Falling Out (of a) Plane Super Man"

Question 9

Branches off the Ascending Aorta and Aortic Arch

Answer 9

coronary A.
brachiocephalic (r. common carotid & R. subclavian)
L. common carotid
L. sublcavian

Question 10

Branches off Abdominal Aorta

Answer 10

Celiac trunk: L. gastric, common hepatic & splenic
Superior mesenteric: goes to the S.I., middle, right, ilio colic
Inferior mesenteric: L. colic, sigmoid & sup rectal

Question 11

what is the mediastinum?

Answer 11

intrapleural space in the thorax

Question 12

Superior mediastinum location? contents?

Answer 12

L: first rib to sternal angle (T4-T5 disc)
C: SVC (upper 1/2), arch of aorta, trachea, int thoracic A. & V, Brachiocephalic A. & V., left common carotid A., subclavian, thoracic duct, esophagus, thyroid, vagus N., left current laryngeal N., thymic remnants & phrenic N.

Question 13

middle medisatinum Location? Contents?

Answer 13

L: between left & right pleural cavities (lungs)
C: heart, pericardium, ascending aorta, SVC (lower 1/2), R & L pulm. A. & V., phrenic N., great vessels, arch of azygous V. and main bronchi

Question 14

Anterior mediastinum location? contents?

Answer 14

L: anterior to pericardium
C: thymic remnants, lymph nodes, fat & loose CT, sternopericardial lig.

Question 15

Posterior mediatsinum location? contents?

Answer 15

L: post to pericardium between mediastinal pleurae
C: esophagus, descending thoracic aorta, azygous & hemiazygous V., thoracic duct, symp. trunk, splanchnic & vagus N.

Question 16

what type of organ is the spleen?

Answer 16

lymphatic

Question 17

what does the spleen store?

Answer 17

RBC

Question 18

what does the spleen produce?

Answer 18

lymphocytes & antibodies

Question 19

what does the spleen contain?

Answer 19

both red pulp (RBC) and white (lymphocyte) pulp

Question 20

what system is Lymph a part of?

Answer 20

Immune system

Question 21

what organs make up the lymphatic system?

Answer 21

Spleen, tonsils, thymus, bone marrow

Question 22

What makes up a nerve?

Answer 22

dendrites (branches)
cell body- perikaryon or soma, contains the nucleus
Axon- the impulse generator
terminal button- NT stored here

Question 23

Ectoderm give rise to?

Answer 23

epithelial cells of skin & nervous tissue

Question 24

endoderm gives rise to?

Answer 24

epithelial cells that line the respiratory & digestive tracts

Question 25

Mesoderm gives rise to?

Answer 25

everything else that ectoderm & endoderm dont cover

Question 26

Sclerotome give rise to?

Answer 26

vertebral column

Question 27

Myotome give rise to?

Answer 27

muscle

Question 28

Dermatome give rise to?

Answer 28

dermis of skin

Question 29

what does the enteric (intrinsic) nervous system control?

Answer 29

GI system