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Biology 12 > Tissues And Homeostasis > Flashcards

Tissues And Homeostasis Flashcards

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0
Q

What is epithelial tissue?

A
  • Protective tissue that covers the surface and lines body cavity.
  • Contain sensory receptors
  • Glandular- secretions, mucosa layer – the cell that secretes is called an endocrine gland cell
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1
Q

Identify four types of tissues found in human body.

A

Epithelial tissue
Connective tissue
Muscle tissue
Nervous tissue

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2
Q

What is connective tissue?

A
  • Protection, supports organs and binds muscle cells
  • Fills spaces
  • stores fat
  • produces blood cells
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3
Q

What is a ligament?

A

Dense Connective tissue. Connects Bone to bone

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4
Q

What is a tendon?

A

Dense connective tissue. Connects muscle to bone.

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5
Q

What is cartilage?

A

Connective tissue. Cells lie in Chambers called lacunae. No blood vessels (heels slowly). Solid yet flexible

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6
Q

What is bone?

A

Hard skeleton made of calcium.
Osteocytes:
- osteoblasts- bone forming
- osteoclasts- breaks down bone. Returns calcium to blood

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7
Q

What are the three types of muscle tissue?

A
  1. Smooth
  2. Skeletal
  3. Cardiac
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8
Q

What is smooth muscle tissue?

A

Involuntary control; in internal organs; NO STRIATIONS; 1 nuclei per cell; contract slowly but stay contracted longer.

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9
Q

What is skeletal muscle tissue?

A

Voluntary control; striated; runs the length of muscle; quick contractions; multiple nuclei

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10
Q

What is nervous tissue?

A

Neurons – dendrites, bell bodies, axon.
neuroglial cells – support and nourish, bind and insulate neurons
*contains sensory fibers

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11
Q

What is the serosa?

A

a thin membrane lining the closed cavities of the body; has two layers with a space between that is filled with serous fluid

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12
Q

What is the longitudinal muscle?

A

Muscle that lies in bundles beneath the serosa and above the circular muscle. Stretches and compresses

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13
Q

What is circular muscle?

A

Muscle that lies lengthwise below the longitudinal muscle. Causes contractions of the muscle. Making its diameter big and snall

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14
Q

What is muscularis?

A

Two layers of smooth muscle. Circular and longitudinal.

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15
Q

What is the mucosa?

A

Mucous membrane layer. A layer of epithelium supported by connective tissue and smooth muscle lines the lumen(central cavity). Contains glandular epithelial cells that secrete digestive enzymes and goblet cells that secrete mucus.

16
Q

What epithelial cells secrete enzymes?

A

Glandular cells

17
Q

What cells secrete mucus?

A

Goblet cells

18
Q

Submucosa?

A

Band of loose connective tissue that contains blood vessels and lies beneath the mucosa. LYMPH nodules called peyers patches are in the submucosa. Protect us from disease

19
Q

What is the tissue composed of?

A

Similarly specialized cells that perform a common function in the body

20
Q

What is epithelial tissue?

A

Covers body surfaces and lines body cavities

21
Q

What is connective tissue?

A

Binds and supports body parts

22
Q

What is muscular tissue?

A

Moves the body and its parts

23
Q

What is nervous tissue?

A

Receive stimuli and conducts nerve impulses

24
Q

What are the three types of epithelial tissue?

A

Protective – covers (skin)
Sensory-receptors (skin; hot, cold)
Glandular-secretes(mucosa layer) cells that secrete are called endocrine gland cells

25
Q

What is loose connective tissue?

A

Has space between components; occurs beneath skin &most epithelial layers; functions in support and binds organs

26
Q

What is adipose tissue?

A

Energy storage, insulation and it is a fat store

27
Q

What is cartilage

A

Cells lie in Chambers called lacunae. No blood vessels which means that they heal slowly; solid and flexible

28
Q

What is dense connective tissue?

A

Ligaments and tendons. contain many collagen fibers that are packed together. has more specific functions than loose connective tissue

29
Q

What is compact bone?

A
  • Has cells in concentric rings of lucunae
  • Support and protection
  • Makes up the shaft of the long bone.
  • Consists of cylindrical structural units called osteons.
30
Q

What is spongy bone.

A

The ends of Longville. Contains numerous bony bars and plates separated by a regular spaces. Although lighter than compound bone ,spongy bone is still designed for strength.

31
Q

What are the rings in an osteon

called?

A

Concentric lamellae

32
Q

What are the projections off of the lacunae called?

A

Canaliculi

Biology 12 (15 decks)

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