Animal Physiology Flashcards Preview

Biology > Animal Physiology > Flashcards

Flashcards in Animal Physiology Deck (18):
1

Locomotion

Movement from place to place

2

Ectotherm

Heated from outside
Ex: reptiles

3

Endotherm (Homeotherm)

Maintaining constant body temperature despite fluctuation in environmental temperature
Ex: birds & mammals

4

Excretion

The removal of metabolic wastes - water, carbon dioxide, nitrogenous wastes d

5

Animals

Multicellular eukaryotes
Heterotrophs

6

Sessile

Nonmoving

7

Exoskeleton
(Arthropods)

Consists mostly of chitin
Does not grow with the animal & must be shed periodically

8

Hydrostatic Skeleton
(nematodes, planaria, annelids)

A closed body compartment filled with fluid
Muscle change the shape of this compartment, enabling the animal to move from place to place

9

Endoskeleton
(Chordates)

Made of bone & cartilage that grows as the animal grows

10

Ligaments

Connect bones to each other at joints

11

Tendons

Connect bones to muscles

12

Ammonia

Very soluble in water & highly toxic

13

Urea

Not as toxic as ammonia
Formed in liver from ammonia in mammals

14

Uric Acid

Pastelike substance that is not soluble in water & therefore not very toxic

15

External Respiratory Surface

Diffusion of gases occur at animal's surface

16

Internal Respiratory Surface

Diffusion of gases occurs inside the animal

17

Closed Circulatory System

Blood is closed at all times within vessels
Blood is pumped by a heart through vessels, does not normally fill body cavities

18

Open Circulatory System

Pump blood into a hemocoels, spaces surrounding the organs
Blood is pumped by a heart into the body cavities where tissues are surrounded by blood