Module 4 - Integument

Question 1

what does skin do for us?

Answer 1

provides protection from abrasion, dyring and the sun.

It is a sensory organ - touch, hair
provides insulation

Question 2

integument communication
visual, cheimical, age

Answer 2

visual: appearance, health, vigor, sexual potency

Chemical: pheromones

Age: secondary sexual characteristics

Question 3

thermoregulation

Answer 3

sweat, capillaries

food for young, easily enabled energy supply

Source of vitamin D - produced by exposure to UV light

Respiration

Question 4

epidermis

Answer 4

ectodermal portion

Question 5

dermis

Answer 5

mesodermal portion

Question 6

Dermis bone

Answer 6

• Dermal bone
• intramembranous ossification
• bones of skull
• some pectoral girdle bones (clavicle)
• fish scales
• plates in turtles; amadillos

Question 7