Tissue Flashcards

1
Q

A group of similar cells and extracellular substance that have combined to perform a single function.

A

Tissue

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2
Q

What are the 4 types of Tissues?

A
  1. Epithelial tissue
  2. Connective Tissue
  3. Muscular tissue
  4. Nervous Tissue
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3
Q

Composed of cells laid together in sheets that is tightly connected, one to the next.

Also called Epithelium

A

Epithelial tissue

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4
Q

True or False

Epithelial tissue has blood vessels and has extracellular substances between the cells.

A

False: Epithelial tissue has neither blood vessels nor any extracellular substances between the cells.

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5
Q

One layer of cells and usually functions as a diffusion or absorption membrane.

A

Simple epithelium

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6
Q

Many layers of cells and is designated for protection.

A

Stratified epithelium

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7
Q

It binds, supports and anchors the organs.

Connects bodily structures.

A

Connective Tissue

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8
Q

The most abundant type of tissue in the body.

It is composed of cells suspended in a matrix.

A

Connective Tissue

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9
Q

It is secreted by the connective tissue cells.

Determines the characteristics of the connective tissue.

A

Matrix, or “ground substance”

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10
Q

The ground substance of all connective tissue contains _________ (for strength) and _______ (for flexibility, stretch and recoil)

A

Fibers of collagen and Elastin

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11
Q

Loose, dense and elastic

They are flexible and their strength varies based on the number and orientation of the collagen fibers.

A

Soft Connective Tissue

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12
Q

Give an example of Soft connective tissue

A
  1. Skin
  2. Tendons
  3. blood vessels
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13
Q

It includes Cartilage, Blood, Bone and Lymph

A

Specialized Connective Tissue

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14
Q

It has no blood supply

A

Cartilage

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15
Q

_________ must obtain nutrients and release waste via diffusion through the matrix

A

Chondrocytes

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16
Q

Consists of a hard matrix surrounding living cells. Both has blood supply and nerve supply.

17
Q

The matrix of compact bone is found in long cylinders called?

A

Osteons or Haversian systems.

18
Q

True or False

Lighter, spongy bone has less structure and is formed in bars and supports rather than as s solid mass.

19
Q

Fluid connective tissue because its matrix is not solid.

20
Q

It is composed of specialized cells that are carried in the fluid matrix (plasma)

Main function is to transport nutrients, gases, hormones, and wastes.

21
Q

Another fluid connective tissue.

Derived from the interstitial fluid that bathes the body cells and is collected in the lymphatic vessels.

22
Q

Its function is to contract.

A

Muscular Tissue

23
Q

What are the 3 types of Muscle tissue?

A
  1. Skeletal Muscle
  2. Smooth Muscle
  3. Cardiac Muscle
24
Q

Long, lying along the length of the muscle tissue itself

Attached to bones by tendons ——> voluntary movements

A

Skeletal Muscle

25
Short string bean-shaped cells joined together Control involuntary movements of internal organs and blood vessels
Smooth Muscle
26
Branched and tightly joined together Involuntary beating of the heart
Cardiac Muscle
27
Specialized communication junctions called?
Intercalated discs
28
Facilitate the heartbeat by transmitting the signal to contract.
Intercalated discs
29
It responds to changes in the environment
Nervous tissue
30
Cells that carry electrical impulses
Neurons
31
Receives impulses from other neurons, bringing the information to the cell body.
Dendrite
32
Transmits impulses from the cell body to other cells
Axon
33
True or False Individual neurons have many dendrites, and many axon.
**False**: Individual neurons have many dendrites, **but each can have only one axon.**
34
Improve nutrient flow to the neurons, provide physical support, remove debris and provide electrical insulation.
Neuroglia
35
Clusters of neurons and their projections, sheathed in connective tissue.
Nerves