a&p chapter 3

Question 0

4 primary tissue types

Answer 0

Epithelium, muscle, nervous,connective

Question 1

Tissues

Answer 1

Groups of cells with similar structure and function

Question 2

Characteristics of Epithelial tissues

Answer 2

Cells fit closely together
Tissue layer always has one free surface
Lower surface is bound by a basement membrane
Avascular (no blood supply)
Regenerate easily if well-nourished

Question 3

Where are epithelial tissues found

Answer 3

Body coverings
Body linings
Glandular tissue

Question 4

Functions of epithelial tissues

Answer 4

Protection
Absorption
Filtration
Secretion

Question 5

Classification/Cell layers of epithelial tissues

Answer 5

Simple - one layer

Stratified - multiple layers

Question 6

Classification/ shape of epithelial cells

Answer 6

Squamous - flattened
Cuboidal - cube shaped
Columnar - column like

Question 7

Simple squamous epithelium

Answer 7

Functions are diffusion and filtration
Usually forms membranes
Lines body cavities
Lines lungs and capillaries

Question 8

Simple cuboidal epithelium

Answer 8

Function is secretion and absorption
Common in glands and their ducts
Forms wall of kidney tubules and ducts
Covers the ovaries

Question 9

Simple columnar epithelium

Answer 9

Function is secretion and absorption
Often includes goblet cells, which produce mucus
Lines digestive system and uterus

Question 10

Pseudostratified Epithelium

Answer 10

Function is secretion and cilia-added Movement
Single layer of cells
Often looks like a double cell layer
May contain cilia and goblet cells

Question 11

Stratified squamous epithelium

Answer 11

Cells at the free edge are flattened
Found as a protective coating where friction is common
Located in skin, mouth and esophagus

Question 12

Transitional epithelium

Answer 12

Shape of cells depend on amount of stretching

Lines organ of urinary system

Question 13

Glandular epithelium

Answer 13

Gland - one or more cells that secret a particular product
Endocrine - ductless; secretes hormones
Exocrine - empty through ducts to the epithelial surface; include sweat and oil glands

Question 14

3 types of Muscle tissue

Answer 14

Skeletal
Cardiac
Smooth

Question 15

Function of muscle tissue

Answer 15

To produce movement

Question 16

Skeletal muscle tissue

Answer 16

Can be controlled voluntarily
Cells attach to connective tissue
Cells are striated
Cells have multiple nuclei

Question 17

Cardiac muscle tissue

Answer 17

Found in the heart
Function is to pump blood (involuntary)
Cells attached to other cardiac muscle cells at intercalated disks
Cells are striated
One nucleus per cell

Question 18

Smooth muscle tissue

Answer 18

Involuntary muscle
Surrounds hollow organs
Attached to other smooth muscle cells
No visible striations
One nucleus per cell

Question 19

Nervous tissue organ examples

Answer 19

Brain, spinal cord, nerves

Question 20

What is nervous tissue made of

Answer 20

Neurons and nerve support cells (neroglia)

Question 21

Function of nervous tissue

Answer 21

Send impulses to other areas of the body

1. Irritability
2. Conductivity

Question 22

Describe structure of a neuron

Answer 22

Soma - nerve cell body
Axon - transmits nerve impulses away from the cell body
Dendrites - carry nerve signals toward cell body or axon