tissue and homeostasis

Question 1

Epithelial Tissue function

Answer 1

 Functions in protection, absorption,

secretion, or sensation

Question 2

Connective Tissue is

Answer 2

 Relatively few cells separated by
intercellular substance
 fibers scattered throughout a matrix

Question 3

Intercellular substance fibers (Connective Tissue )

Answer 3

 collagen fibers
 elastic fibers
 reticular fibers

Question 4

Connective Tissue Contains specialized cells such as

Answer 4

fibroblasts and macrophages

Question 5

Connective Tissue functions

Answer 5

joins other body tissues
supports body and organs
protects underlying organs

Question 6

Muscle Tissue

 Consists of cells

Answer 6

specialized to contract

Question 7

Basic Tissue Types

Answer 7

 Epithelial, Muscle, Connective, and

Nervous

Question 8

Positive Feedback System

Answer 8

Deviation from steady state causes

changes that ***intensify

Question 9

Thermoregulation

Answer 9

Process of maintaining body temperature

within certain limits

Question 10

Ectotherms

Answer 10

body temperature depends

on temperature of environment

Question 11

Benefits of ectothermy

Answer 11

very little energy used to maintain the
metabolic rate
 ectotherms can survive on less food

Question 12

 Disadvantage of ectothermy

Answer 12

activity limited by daily and seasonal

temperature conditions

Question 13

Endotherms

Answer 13

Have homeostatic

mechanisms

Question 14

Benefits of endothermy

Answer 14

high metabolic rate
constant body temperature allows higher rate
of enzyme activity
active even in low winter temperatures

Question 15

Temperature regulation in humans

is mediated by

Answer 15

1. Nervous signals and

2. Hormonal signals

Question 16

Feathers of birds and hair of mammals

Answer 16

orm insulating layer

 helps maintain constant body temperature

Question 17

Mammalian skin include

Answer 17

hair, claws or nails, sweat glands, oil glands,

sensory receptors

Question 18

Epithelial Tissue in

Invertebrates

Answer 18

Cuticle protective shell secreted by outer epithelium

Question 19

Epidermis consist of

Answer 19

Stratum corneum

most superficial layer dead cells filled with keratin

Question 20

DermisConsists of

Answer 20

dense, fibrous connective tissue

 Rests on layer of subcutaneous tissue

Question 21

 Epithelial coverings _____ underlying

tissues and may be specialized for_____ ______ or other functions

Answer 21

protect, sensory, respiratory,