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0
Q

4 primary tissue types

A

Epithelium, muscle, nervous,connective

1
Q

Tissues

A

Groups of cells with similar structure and function

2
Q

Characteristics of Epithelial tissues

A

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

3
Q

Where are epithelial tissues found

A

Body coverings
Body linings
Glandular tissue

4
Q

Functions of epithelial tissues

A

Protection
Absorption
Filtration
Secretion

5
Q

Classification/Cell layers of epithelial tissues

A

Simple - one layer

Stratified - multiple layers

6
Q

Classification/ shape of epithelial cells

A

Squamous - flattened
Cuboidal - cube shaped
Columnar - column like

7
Q

Simple squamous epithelium

A

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

8
Q

Simple cuboidal epithelium

A

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

9
Q

Simple columnar epithelium

A

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

10
Q

Pseudostratified Epithelium

A

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

11
Q

Stratified squamous epithelium

A

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

12
Q

Transitional epithelium

A

Shape of cells depend on amount of stretching

Lines organ of urinary system

13
Q

Glandular epithelium

A

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

14
Q

3 types of Muscle tissue

A

Skeletal
Cardiac
Smooth

15
Q

Function of muscle tissue

A

To produce movement

16
Q

Skeletal muscle tissue

A

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

17
Q

Cardiac muscle tissue

A
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
18
Q

Smooth muscle tissue

A
Involuntary muscle
Surrounds hollow organs
Attached to other smooth muscle cells
No visible striations
One nucleus per cell
19
Q

Nervous tissue organ examples

A

Brain, spinal cord, nerves

20
Q

What is nervous tissue made of

A

Neurons and nerve support cells (neroglia)

21
Q

Function of nervous tissue

A

Send impulses to other areas of the body

  1. Irritability
  2. Conductivity
22
Q

Describe structure of a neuron

A

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