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Anatomy > Lecture 3: Histology III > Flashcards

Lecture 3: Histology III Flashcards

1
Q

Which connective tissue is the model for fetal bone formation?

A

Cartilage

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2
Q

Is cartilage primarily water or fibers?

A

water

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3
Q

What structure surrounds the cells of the cartilage?

A

Perichondrium

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4
Q

True or False: chrondroblasts produce the matrix and, when mature, chondrocytes lie in the lacunae

A

True

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5
Q

Which type of cartilage is found at the ends of long bones, forms costal cartilage in ribs, and found in nose/trachea/larynx?
A. Hyaline
B. Elastic
C. Fibrocartilage

A

A. Hyaline

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6
Q

Which cartilage supports the external ear (pinna) and the epiglottis?
A. Hyaline
B. Elastic
C. Fibrocartilage

A

B. Elastic

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7
Q

In addition to containing elastin fibers, elastic cartilage also contains…
A. Type II Collagen
B. Type I Collagen

A

A. Type II Collagen

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8
Q

True or False: Bone is avascular

A

False

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9
Q

Do osteoblasts/osteoids contain more type 1 or type 2 collagen?

A

Type I Collagen

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10
Q
A
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11
Q

Mature bone is organized into ____

A

osteons

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12
Q

___ are the “rings” in osteons

A

Lamellae

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13
Q

____is the outer layer of bone. It is also osteogenic.
A. Periosteum
B. Mesenchyme
C. Perichondrium

A

A. Periosteum

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14
Q

Compact bone is also known as ___ while spongy is also known as ____

A

Compact: Cortical
Spongy: Cancellous

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15
Q

True or False: All bones have an outer shell of compact bone

A

True

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16
Q

Which type of bone is formed by a network of branching trabeculae (spikes)?
A. Cancellous
B. Spongy
C. Compact
D. Cortical

A

A. Cancellous/B. Spongy

17
Q

Which letters correspond to features of a neuron?

1 = neurons respond to stimuli by altering electrical potential differences
2 = electrical potential changes can be spread or propagated throughout neuron (AP)
3 = information is relayed to more neurons via synapses

A. Transmission
B. Irritability/Excitability
C. Conductivity

A

B = 1
C = 2
A = 3

18
Q

True or False: Glial cells provide metabolic support and have a phagocytic function

A

True

19
Q

What are Nissl substances? Indicates?

A

Stained organelle of the soma/cell body; indicates metabolically active cell

20
Q

True or False: A neuron can have 0 dendrites

A

True

21
Q

How many axons per neuron?
A. Many
B. Only 1
C. Hundreds

A

B. Only 1

22
Q

____: swelling of the terminal/distal end of the axon, is the site where neural signals are transmitted to another neuron or muscle

A

Terminal ending

23
Q

Where are synaptic vesicles found?

A

Pre-synaptic neuron

24
Q

Most common neuron? How many axons and dendrites does it have?

A

Multipolar neurons
- 1 axon
- 2 or more dendrites

25
Q

Which type of neuron have only one axon and one dendrites and are located in special sense areas?

A

Bipolar neurons

26
Q

Which type of neuron have one process that divides close to the soma into two long processes, both of which are structurally similar to an axon?

A

Pseudounipolar neurons

27
Q

Where does the afferent end of a pseudounipolar neuron extend to? Efferent end?

A

Skin/periphery
CNS = nerve terminals

28
Q

Which neurons are found in the rods and cones in the retina and has NO dendrites?

A

Unipolar neuron

29
Q

How many pairs of spinal nerves are there?

A

31 pairs

30
Q

____: groupings of neuronal cell bodies outside of the CNS

A

Ganglia

31
Q

The autonomic nervous system is responsible for innervating ____, ____, and ____

A

Cardiac and Smooth muscle; Glandular epithelium

32
Q

___stem cell is the precursor of RBC’s and megakaryocytes

A

Myeloid stem cells

33
Q

Where does the pluripotent stem cell reside?

A

Bone marrow

34
Q

True or False: Cartilage is avascular

A

True (gets nutrition via diffusion)

35
Q

Where is fibrocartilage found?
A. External ear
B. Pubic symphysis
C. IV discs
D. Costal rib cartilages
E. Epiglottis

A

C., B.

Anatomy (28 decks)

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