Tissues Of Body

Question 0

Purpose of tissues:

Answer 0

To help maintain homeostasis

Question 1

Tissues defined:

Answer 1

A group of cells and surrounding material that work together to form a function

Question 2

Types of tissues:

four total

Answer 2

1. Epithelial tissue
2. Connective tissue
3. Muscle tissue
4. Nervous tissue

Question 3

Define epithelial tissue:

Answer 3

“One free surface” (always)
“bark of a tree”
“Skin”

Question 4

The two types of epithelial tissue:

Answer 4

1. Membranous
   Covering and lining
2. Glandular
   Within covering and lining

Question 5

Purpose of membranous epithelial tissue: (five functions)

Answer 5

1. Protection
2. Filtration
3. Secretion (of cells own product)
4. Absorption
5. Excretion (of waste)

Question 6

What type of free surfaces does the membranous epithelial tissue cover?

Answer 6

• Internal and external skin
• Body cavities
• Joint capsules
• Hollow organs
• Lines ducts
• Forms glands
• Interior lining of blood vessels & respiratory, digestive, urinary, and reproductive systems

Question 7

Simple epithelial tissue

Answer 7

• Single layer
• -Selective barrier
• -secretes substances onto free surfaces

Question 8

Stratified epithelial tissue

Answer 8

• multiple layers
• -protected surfaces
• –Keratin
• –Cilia

Question 9

Keratin

Answer 9

An insoluble protein found in the hair, nails, and other keratinized tissues of the epidermis

Question 10

Cilia

Answer 10

Are numerous, short, hairlike projections that extend from the surface of the cell; helps move substances.

Question 11

Shapes of epithelial:

Four total

Answer 11

1. Squamous-flat
2. Cuboidal-square
3. Columnar-long and narrow
4. Transitional-flat to cuboidal

Question 12

Types of glands:

Answer 12

1. Endocrine - secretes into blood

2. Exocrine - takes secretions away

Question 13

Exocrine gland secretes:

Answer 13

Mucus
Sweat (sudoriferous)
Oil (sebaceous)
Digestive enzymes
Earwax
Saliva

Question 14

Endocrine gland secretes:

Answer 14

Hormones
--from
---pituitary (master gland)
---thyroid
---adrenal
Directly into blood stream 
Ductless

Question 15

Connective tissue

Answer 15

Supporting fabric of the body

Question 16

Purpose of connective tissue?

Answer 16

1. Major transport sys
2. Primary location of stored energy
3. Main source of immune response
4. Makes compartments for other structures
5. Binds together, supports & strengthens other body tissues
6. Protects and insulates internal organs

Question 17

Characteristics of connective tissue?

Answer 17

1. Non-living material between cells aka “matrix”
2. Cells widely spaced
3. Usually not found on body surfaces

Question 18

Types of connective tissue?

Four

Answer 18

1. Liquid
   - -matrix; plasma; blood
2. Soft (semi-matrix)
   - -membranes; fat
3. Fibrous
   - -tendons (muscle-bone); ligaments (bone-bone); linings (around bone/muscle); coverings; walls (vocal cords)
4. Hard
   - -cartilage (hyaline, fibro, elastic); bone (early skeleton vs adult.. Ossification)

Question 19

Types of muscle tissue?

Answer 19

1. Skeletal - movement & heat
2. Cardiac - heart
3. Smooth - digestive system

2&3 - involuntary

Question 20

Nervous tissue?

Answer 20

• Detects changes in the external and internal environment
• Initiates movement and/or glandular secretion
• Neuron (nerve cell) conducts nerve impulse through irritability and conductivity