Chapter 4: Tissues and Regulation of Body Systems

Question 1

Organization of biggest to smallest categories:

Answer 1

Cells-Tissues-Organs-Organ Systems

Question 2

Define tissue

Answer 2

collection of the same type of cells that perform a common function.

Question 3

Name the 4 major types of tissue:

Answer 3

• Collective tissue
• Muscular Tissue
• Epithial Tissue
• Nervous Tissue

Question 4

Types of connective tissue and the characteristics of each type:

Answer 4

• Fibrous Connective Tissue-
  
  • Comes in a loose form and a dense form.
  • The dense form is found in tendons and ligaments.
  • Loose form supports many internal organs
• Supportive Connective Tissue
  
  • Funtions in shape and structure
    - Cartilage and bone.
• Fluid connective tissue
  - Blood and Lymph
  - The blood contains plasma and cellular components called formed elements.

Question 5

Muscular tissue function:

Answer 5

MOVES THE BODY

Question 6

Name the three kinds of muscles and the characteristics of each:

Answer 6

• Skeletal
  
  • attached to skeleton by TENDONS
    - Voluntarily controlled,
    - Muscle fibers are very long and they are striated (striped) in appearance.
• Smooth
  - Not striated in appearance
  - Spindle shaped cells
  - involuntarily controlled
  - found in walls of organs
• Cardiac
  
  • found in walls of heart
  • striated
  • involuntary
  • single nucleus
  • cells are controlled by intercalated disks

Question 7

List the parts of a neuron

Answer 7

Axon-long extension going down
Dendrites- long strands that come out of cell body.
Nerves- bundles of neurons together
Nucleus

Question 8

Define neuroglia

Answer 8

main job is to protect and maintain the optimum functioning of the nervous system.

Question 9

Epithelial tissue function:

Answer 9

To PROTECT

Question 10

Define basement membrane:

Answer 10

found on the BASE of cells, anchoring them

Question 11

Epithelial shapes and the arrangement of the cells:

Answer 11

Shapes:

• Cubidal- dice
• Squamous-squashed
• Columnar- columns

Arrangment:

• Simple- just normal squares in a row
• Psuedo Stratified columnar- columns with breaks in between them
• Stratfied- ring like shapes in a row

Question 12

Two systems that control and regulate homeostasis:

Answer 12

Nervous system and Endocrine System.

Question 13

Negative feedback example:

Answer 13

When your body temperature changes and your body has to work hard to maintain hat homeostasis and bring the body temperature back to normal.

Question 14

Positive feedback example and define:

Answer 14

The release of oxytocin. An example would be contractions while giving birth. When contraction occurs, oxytocin is released to make those contractions. Or blood clotting.