Cells and Tissues Flashcards
1
Q
Cell
A
The structural, functional and biological unit of all organisms
2
Q
Tissue
A
A group of similar cells, functioning together to perform a specialised activity
3
Q
Epithelial Tissue
A
Covers body surfaces or tissues, lines body cavities and forms glands
4
Q
Connective Tissue
A
Protects and supports the body and the organs and binds organs together
5
Q
Muscular Tissue
A
Is responsible for movement
6
Q
Nervous Tissue
A
Produces and transmits nerve impulses that control body activities
7
Q
Skeletal Muscle
A
- Voluntary movement
- Attached to various bones of skeleton
- Cells long and cylindrical
- Multinucleated
- 50% body overall weight
- contracts rapidly and strongly but liable to fatigue
8
Q
Smooth Muscle
A
- Involuntary
- Visceral
- non-stripped
- Found in ducts, digestive tube, blood vessels, urinary bladder
- one nuclei
- helps movement of food and blood
- contraction slow
- doesn’t tire
9
Q
Cardiac Muscle
A
- striated (not as dark as skeletal)
- only found in heart
- involuntary
- one nuclei
- one cell is connected to the other INTERCALATED DISCS
- provide strength
- assist in passage of nerve impulses
- never tires
- requires 02
10
Q
Excitability
A
responds to stimuli
11
Q
Conductivity
A
conduct or transmits electrical/nerve impulses
12
Q
Low power
A
10x4=40
13
Q
Medium power
A
10x10=100
14
Q
High power
A
10x40=400
15
Q
As the objective power increases the field of view…..
A
decreases
