ch 38 Introduction to Animal Organization and Physiology

Which tissue type consisting of sheetlike layers of cells can both exchange oxygen and act as a barrier to bacteria?

Answers:

nervous

epithelial

connective

muscle

heart

epithelial

Which of the following is not a connective tissue? Answers:

1. muscle

2. cartilage

3. blood

4. bone

5. adipose tissue

1. muscle

A flexible, rubbery protein in connective tissue is called , whereas a more fibrous, less flexible glycoprotein is called . Answers:

1. adipose; cartilage

2. endocrine; exocrine

3. sweat; hormones

4. chondroitin sulfate; hydroxyapatite

5. elastin; collagen

elastin; collagen

Adipose tissue: Answers

1. provides elasticity under the epithelium.

2. gives strength to tendons.

3. insulates and is an energy reserve.

4. provides movement, support, and protection.

5. supports the nose and airways.

insulates and is an energy reserve.

Tendons and ligaments consist of: Answers:

1. loose connective tissue.

2. dense connective tissue.

3. cartilage.

4. skeletal muscle.

5. smooth muscle.

dense connective tissue

Lifting weights will most increase the size of: Answers

1. skeletal muscle.

2. smooth muscle.

3. cardiac muscle.

4. involuntary muscle.

5. interlinked, branched muscle.

skeletal muscle

Which muscle types appear striated under a microscope? Answers

1. skeletal muscles only

2. cardiac muscles only

3. skeletal muscles and cardiac muscles

4. smooth muscles only

5. skeletal muscles and smooth muscles

skeletal muscles and cardiac muscles

Which of the following is not a homeostatic response? Answers

1. In a contest, a student eats an entire chocolate cake in 10 minutes, and his blood glucose level does not change dramatically.

2. A jogger is sweating after a two-mile jog.

3. The pupils in humans’ eyes constrict when looking at a light.

4. Physical activity increases carbon dioxide blood levels, which lowers blood pH and increases breathing.

5. Oxytocin is released by the hypothalamus during human childbirth.

Oxytocin is released by the hypothalamus during human childbirth.

When you exercise, a skeletal muscle increases its use of , which reduces the concentration of in the muscle cells and sets up a requirement for increased uptake from the interstitial fluid. This is an example of:

1. osmolarity.

2. environmental sensing.

3. integration.

4. systemic homeostatic control.

5. local homeostatic control.

local homeostatic control

The system that coordinates other organ systems is the:

1. skeletal system.

2. reproductive system.

3. muscular system.

4. nervous system.

5. integumentary system.

nervous system.