Lecture 12 Part 2

Question 1

Lungfish Heart: Atrium/ventricle partially divd. internally by

Answer 1

interatrial/interventricular septum resptvly.

Question 2

Amph. Hearts: rely on cutan.

Answer 2

gas exch, gills, lungs, or all three

Question 3

Amph. Hearts: Atria complt. divd.

Answer 3

internally

Question 4

Amph. Hearts: No subdivd. in ventricle-unique among…

Answer 4

air breathing verts

Question 5

Rept Hearts: support high. metab. rates; effic. at..

Answer 5

separating O2 blood from non O2 blood

Question 6

Rept Hearts: have two basic pattrns:

Answer 6

Turtle/Squamate and Croc hearts

Question 7

Turt/Squamate and Croc heart: Sinus venosus…

Answer 7

reduced; Atria completely divid.

Question 8

Croc hearts: ventricles completely divd…

Answer 8

internally; use of cardiac shunt in water/bypass lung

Question 9

Turt/Squamate hearts: Ventricle has three

Answer 9

interconnected compartments

Question 10

Types of Heat Transfers-

Answer 10

Warming/Cooling body, and Preventing Cooling

Question 11

Warming body: bask in sun, warms periph. blood vess. and…

Answer 11

warmed blood circlt. thru body, warming deeper tissues

Question 12

Cooling body: body heat transpt. by blood to body surface,…

Answer 12

capillary beds in periph. circult. dilate, heat lost to envirnm.

Question 13

Preventive Cooling: reduce periph. blood flow. Specilz. in…

Answer 13

water/frigid dwelling organisms

Question 14

Dolph, whales have artery surrd. by

Answer 14

ring of veins

Question 15

When heat needs to be disspt., central artery dilates, presses against

Answer 15

ring of veins/close off circulation

Question 16

Warm blood is diverted to

Answer 16

surface, heat dissipated to envrm.

Question 17

Bio Adj. in Evol: decr. heart rate, reduces

Answer 17

energy spent of pumping blood to O2 deplt. lungs

Question 18

Bio Adj. in Evol: Anaerobic metbl. in..

Answer 18

skeletal musc. incr.

Question 19

Bio Adj. in Evol: Microcircul. alters..

Answer 19

blood flow to major organs/tissues