Chapter 4

Question 1

Endocrine vs Exocrine glands

Answer 1

Endo - ductless, secrete hormones internally
Exo - more numerous, ducts, secrete onto skin

Question 2

All connective tissues have three
main elements

Answer 2

Ground substance
Fibers
Cells

Question 3

Fibers:

Answer 3

Collagen: strongest, most abundant, provide
tensile strength
— Elastic: allows stretching; found in skin, lungs,
and blood vessel walls
— Reticular: surrounds small blood vessels and
support soft tissue organs
- Allow more stretch than larger collagen fibers

Question 4

CONNECTIVE TISSUE PROPER

Answer 4

Loose connective tissue + Dense connective tissue

Question 5

Loose connective tissue

Answer 5

¢ Areolar
¢ Adipose
¢ Reticular

Question 6

Dense connective tissue

Answer 6

¢ Dense regular Forms: tendons, aponeuroses, ligaments
¢ Dense irregular Forms: sheets in body areas where tension is exerted from many directions
¢ Elastic

Question 7

Three types of cartilage:

Answer 7

Hyaline cartilage
— Elastic cartilage
— Fibrocartilage

Question 8

Hyaline Cartilage

Answer 8

¢ Covers ends of long bones
¢ Supports tip of nose
¢ Connects ribs to sternum
¢ Supports most of respiratory system passages
Ex: trachea
¢ Makes up most of embryonic skeleton before bones form
¢ Persists as epiphyseal plates near ends of long bones

Question 9

Elastic Cartilage

Answer 9

¢ “skeleton” of external ear
¢ epiglottis

Question 10

Fibrocartilage

Answer 10

¢ Intervertebral discs
¢ Spongy cartilages of the knee

Question 11

Tissue Repair Steps

Answer 11

1. Inflammation
2. Restore blood supply
3. Regeneration or fibrosis

Question 12

Embryonic Development
— 3 Primary germ layers

Answer 12

Ectoderm - nerves
Mesoderm - muscle & c.t.
Endoderm - skin