Embryology/Histology Deck 2 Flashcards

1
Q

Fertilized egg is called.

A

Zygote

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Fertilized egg after zygote up to 8 weeks is called.

A

Embryo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

After 8 weeks, embryo becomes what?

A

Fetus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Stem cells are ________ cells that can become specialized cells.

A

Undifferentiated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The zygote becomes a ___________, which is a hollow ball of cells.

A

Blastula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The blastula __________ and develops into the Gastrula.

A

Invaginates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The inner cell mass of blastocyst becomes the _______, while the outer trophoblast becomes the __________.

A

Embryo

Placenta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

At 2-3 weeks you can see three germ cell layers in the Gastrula, which are?

A

Endoderm, mesoderm, ectoderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Ectoderm forms?

A

Outside skin, hair, nails, cornea, neural crest and neural tissues (CNS and PNS)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Mesoderm becomes what?

A

Middle skin: skeletal muscle, cartilage, bone, kidney, gonads, GI tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Endoderm becomes what?

A

Inside skin: epithelium of GI and Respiratory, thyroid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The neural tube forms the hold in the spinal cord and the __________ in the brain.

A

Ventricles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Telencephalon becomes?

A

Cerebrum and basal ganglia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Diencephalon becomes?

A

Thalamus and hypothalamus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Mesencephalon becomes?

A

Part of brain stem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Rhombencephalon becomes?

A

Pons, cerebellum, medulla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Supportive tissue of a structure is called?

A

Stroma=structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Functional tissue of a structure/organ is called?

A

Parenchyma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Stains the nuclei blue?

A

Hematoxylin

20
Q

Stains the cytoplasm red

A

Eosin

21
Q

3 things malignancies usually have in common are ?

A

Architectural distortion of tissue
A lot of nuclear material (blue)
Range of size and shape of nuclei

22
Q

6 types of epithelial cells are?

A
Simple squamous (lines blood vessels and air sacs of lungs, permits exchange of nutrients)
Simple cuboidal (lines kidneys, secretes and reabsorbs water and small molecules)
Simple columnar (lines GI tract, absorbs nutrients, produces mucus, has goblet cells)
Stratified squamous (skin, mouth, vagina, protects against abrasion, drying out, infection)
Stratified cuboidal (ducts of sweat glands, secretes water and ions)
Stratified columnar (lines mammary glands, epididymus, larynx, secretes mucus)
23
Q

Simple squamous cells are found where?

A

Lungs, blood vessels

24
Q

Simple cuboidal are found where?

A

Kidney tubules

25
Q

Simple columnar are found where?

A

Trachea (cilia and goblet cells), digestive tract

26
Q

Stratified squamous cells are found where?

A

Outer layer of skin

27
Q

Well differentiated tumors are usually?

A

Benign

28
Q

Well differentiated malignant tumors are?

A

Less aggressive

29
Q
Tumor Node Metastasis classification
Explain for Tumor:
To
Tis 
T1-4
A

To: no evidence of primary tumor
Tis: tumor in situ
T1-4 ascending degree of tumor size and involvement

30
Q
TNM classification
Explain for Nodes
No:
N1a, N2a
N1b-N3b
Nx
A

No : no abnormal regional nodes
N1a, N2a: regional nodes-no metastasis
N1b-N3b: regional lymph nodes-Mets suspected
Nx: regional nodes cannot be assessed clinically

31
Q

TNM classification
Explain for Metastasis
Mo
M1-3

A

Mo: no evidence of distant metastasis

M1-3, ascending degrees of metastatic involvement of host including distant nodes

32
Q

Tumor of glandular origin

A

Adeno-

33
Q

Benign tumor

A

-oma

34
Q

Malignant tumor or epithelial origin

A

Carcinoma

35
Q

Malignancy of mesodermal origin, bone, muscle, fat, cartilage

A

Sarcoma

36
Q

Benign tumors of epithelial tissue with glandular origin

A

Adenoma

37
Q

Grade IV astrocytoma is called?

A

Glioblastoma multiforme

38
Q
Connective tissue arises from the 
A. Endoderm
B. Mesoderm
C. Ectoderm
D. Neuroectoderm
A

B. Mesoderm

39
Q

Collage and polysaccharide strands are examples of?

A

Fibrous connective tissue

40
Q

Ligaments, tendons, fascia, elastic fibers are examples of what?

A

Dense connective tissue

41
Q

Dispersed fibrous, elastic, and collagen supportive tissue around eyes, epiglottis are examples of ?

A

Loose areolar connective tissue

42
Q

Which tissue is prone to marked swelling with edema, such as CHG, epiglottis is, or laryngeal edema secondary to anaphylaxis?

A

Loose connective/areolar tissue

43
Q

This fibrous connective tissue is the main structural protein in the extracellular matrix of connective tissue.

A

Collagen

44
Q

This fibrous connective tissue is an elastic protein in the extracellular matrix

A

Elastin

45
Q

Extracellular matrix is also known as the?

A

Stroma

46
Q

Scarring, pulmonary fibrosis, and liver cirrhosis are examples of what?

A

Fibrosis, a formation of excess fibrous connective tissue that can be benign, reactive, or pathological