Terms/ Histology/ Mitosis + Meiosis Flashcards

1
Q

Sagittal section:

A

A cut along the median plane, symmetrical cut

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2
Q

Frontal section:

A

A cut along the coronal plane, divides body into anterior and posterior portions

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3
Q

Cross-section:

A

A cut through the transverse plane, divides the body into upper and lower portions

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4
Q

Anatomic position:

A

Body is erect
Feet are slightly apart
Head is held high
Palms of the hands are facing forwards

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5
Q

Superior:

A

Above

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6
Q

Inferior:

A

Below

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7
Q

Anterior:

A

Facing forward

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8
Q

Posterior:

A

Toward the back

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9
Q

Medial:

A

Toward the midline

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10
Q

Lateral:

A

Away from the midline or towards the sides

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11
Q

Proximal:

A

Closer to the point of attachment

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12
Q

Distal:

A

Farther away from the point of attachment

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13
Q

Dorsal cavity includes:

A

Cranial and spinal cavities

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14
Q

Ventral cavity includes:

A

Orbits and the nasal, oral, thoracic, and abdominopelvic cavities

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15
Q

Histology:

A

Study of tissues

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16
Q

Tissues:

A

Group of cells that act together to perform specific functions

17
Q

4 fundamental tissues:

A

Epithelial, connective, muscle, and nerve

18
Q

Epithelial cells:

A

Cover, line, and protect the body and its internal organs

19
Q

Connective tissue:

A

Framework of the body that provides support and structure for the organs
-Composed of collagen, elastin, reticulum

20
Q

Nerve tissue:

A

Composed of neurons and connective tissue cells that are called neuroglia

21
Q

Muscle tissue:

A

Have the ability to contract or shorten

22
Q

Types of muscle tissue
_________
Voluntary and involuntary:

A

Voluntary: skeletal muscles
Involuntary: smooth muscle and cardiac muscle tissue

23
Q

Nucleus:

A

Contains deoxyribonucleic acid (DNA)

24
Q

Mitosis:

A

DNA is duplicated and distributed evenly to two daughter cells

25
Q

Meiosis:

A

The chromosome number is reduced from 46 to 23, so when the egg and sperm unite in fertilization, the zygote will have the correct number of chromosomes

26
Q

Meiosis takes place:

A

In the ovaries and testes

27
Q

If you wanted to separate the abdominal cavity from the thoracic cavity, which plane would you use?

A

Transverse

28
Q

Squamous:
Cuboidal:
Columnar:

A

Flat
Cubed
Column

29
Q

Stratified:

A

Composed of multiple layers of cells

30
Q

Pseudostratified:

A

Appears to be stratified by only has 1 layer of cells