A&P Lab Test 3 Flashcards Preview

A&P1 > A&P Lab Test 3 > Flashcards

Flashcards in A&P Lab Test 3 Deck (40)
Loading flashcards...
1
Q

How many primary tissue types are found in the human body? What are they?

A

4 tissue types: epithelium, connective, nervous and muscle.

2
Q

Which of the following is not connective tissue? Why? 1. bones 2. ligaments 3. neurons 4. tendons

A

Ans: Neurons. Neurons are nerve tissue, not connective tissue.

3
Q

Give an example where transitional epithelia may be found

A

The bladder

4
Q

What are the 8 types of epithelial tissue?

A

Simple and stratified squamous, cuboidal and columnar, plus pseudostratified and transitional

5
Q

What is the neuromuscular junction?

A

The synapse between the neuron and muscle. Also: The term for the connection between the nervous system and the muscle fiber. It is a type of synapse– a connection from a neuron to either another neuron or a muscle or another effector organ. Regardless, it is a connection from that sends electrical information to another place. This electrical information has to travel from one cell to another. The problem is that each cell is an independent unit, and there is space between the two cells that must communicate electrically.

6
Q

The study of tissue is called…

A

histology

7
Q

Provide an example of simple squamous epithelium

A

lining of heart & blood vessels

8
Q

What is diffusion?

A

Movement of molecules from an area of higher concentration to low concentration

9
Q

What is the most common tissue type?

A

Connective tissue

10
Q

Give an example of connective tissue

A

Blood. Bone. Ligaments. Tendons. Adipose. Areolar.

11
Q

Areolar tissue is….

A

loose connective tissue

12
Q

Collagen is part of what in a cell?

A

Ground substance.

13
Q

Where can stratified squamous epithelium be found?

A

Lining of the mouth

14
Q

What are the 4 main types of connective tissue?

A

Connective tissue proper (areolar, adipose, reticular and dense [fibrous]), cartilage, blood and bone.

15
Q

Name the 3 kinds of muscle cells

A

Smooth, cardiac, skeletal

16
Q

Where can simple cuboidal tissue be found?

A

kidney tubules, ovary surface

17
Q

What are the 5 major functions of epithelium in the body?

A

SAFE-P: secretion, absorption, filtration, excretion, protection. Also: SENSORY RECEPTION

18
Q

What factors affect diffusion rate?

A

Distance, molecule size, temperature, gradient size, electrical forces

19
Q

Erythrocytes and leukocytes are what kind of tissue?

A

Fluid connective tissue. They’re RBC (erythrocytes) and WBC (leukocytes).

20
Q

What is osmotic pressure?

A

The force of a concentration gradient of water.

21
Q

What are the 4 structural classifications of neurons?

A

Anaxonic, bipolar, unipolar and multipolar.

22
Q

Where are anaxonic neurons found?

A

Mostly in the brain.

23
Q

Where are multipolar neurons found?

A

In the CNS. Includes all skeletal muscle motor neurons.

24
Q

Give an example of a neuromuscular junction.

A

Heart muscle: synoatrial node (SA node)

25
Q

What gets released at the neuromuscular junction?

A

Acetylcholine

26
Q

What are the 4 types of neuroglia in the CNS?

A

Astrocytes, oligodendrocytes, ependymal and microglial

27
Q

What do astrocytes do?

A

They help form the blood-brain barrier and are the most abundant neuroglia in the CNS.

28
Q

What do microglial neuroglia do?

A

Remove debris (they’re defensive cells in CNS)

29
Q

What is the function of ependymal neuroglia?

A

They produce cerebrospinal fluid (CSF)

30
Q

What do oligodendrocytes do?

A

They wrap around axons and produce myelination (myelin sheaths)

31
Q

What types of neuroglia are in the PNS?

A

Schwann cells and satellite cells

32
Q

What generates and conducts nerve impulses?

A

Axons

33
Q

Where do neurons divide?

A

Only in the nodes.

34
Q

All neurons that come from the spinal cord end up in ________

A

ganglia.

35
Q

Give an example of autonomic nerve impulse

A

cardiac muscle (involuntary)

36
Q

Give an example of somatic nerve impulse

A

skeletal muscle (voluntary)

37
Q

Another name for Schwann cells is…..

A

neurolemma

38
Q

What do Schwann cells do?

A

Form myelin sheaths

39
Q

Name several neurotransmitters

A

Acetylcholine, GABA, seratonin, histamine, dopamine, epinephrine, Norepinephrine (NE)

40
Q

What produces action potential?

A

Cell body. Action potent is electrical signal.