Tissues And Homeostasis

Question 0

What is epithelial tissue?

Answer 0

• 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

Question 1

Identify four types of tissues found in human body.

Answer 1

Epithelial tissue
Connective tissue
Muscle tissue
Nervous tissue

Question 2

What is connective tissue?

Answer 2

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

Question 3

What is a ligament?

Answer 3

Dense Connective tissue. Connects Bone to bone

Question 4

What is a tendon?

Answer 4

Dense connective tissue. Connects muscle to bone.

Question 5

What is cartilage?

Answer 5

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

Question 6

What is bone?

Answer 6

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

Question 7

What are the three types of muscle tissue?

Answer 7

1. Smooth
2. Skeletal
3. Cardiac

Question 8

What is smooth muscle tissue?

Answer 8

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

Question 9

What is skeletal muscle tissue?

Answer 9

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

Question 10

What is nervous tissue?

Answer 10

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

Question 11

What is the serosa?

Answer 11

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

Question 12

What is the longitudinal muscle?

Answer 12

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

Question 13

What is circular muscle?

Answer 13

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

Question 14

What is muscularis?

Answer 14

Two layers of smooth muscle. Circular and longitudinal.

Question 15

What is the mucosa?

Answer 15

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.

Question 16

What epithelial cells secrete enzymes?

Answer 16

Glandular cells

Question 17

What cells secrete mucus?

Answer 17

Goblet cells

Question 18

Submucosa?

Answer 18

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

Question 19

What is the tissue composed of?

Answer 19

Similarly specialized cells that perform a common function in the body

Question 20

What is epithelial tissue?

Answer 20

Covers body surfaces and lines body cavities

Question 21

What is connective tissue?

Answer 21

Binds and supports body parts

Question 22

What is muscular tissue?

Answer 22

Moves the body and its parts

Question 23

What is nervous tissue?

Answer 23

Receive stimuli and conducts nerve impulses

Question 24

What are the three types of epithelial tissue?

Answer 24

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

Question 25

What is loose connective tissue?

Answer 25

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

Question 26

What is adipose tissue?

Answer 26

Energy storage, insulation and it is a fat store

Question 27

What is cartilage

Answer 27

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

Question 28

What is dense connective tissue?

Answer 28

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

Question 29

What is compact bone?

Answer 29

- 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.

Question 30

What is spongy bone.

Answer 30

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.

Question 31

What are the rings in an osteon | called?

Answer 31

Concentric lamellae

Question 32

What are the projections off of the lacunae called?

Answer 32

Canaliculi