Question

1. What is the connective tissue that cushions your bones and enables smooth movements of the skeletal system?
a. ligament
b. spongy bone
c. muscle
d. cartilage
2. Which bone is part of your axial skeleton?
a. thigh bone
b. breast bone
c. ankle bone
d. finger bone
3. What is true of all joints?
a. They occur where two bones meet.
b. They provide limited movement.
c. They include a ligament.
d. They provide a place for muscle to attach.

4. Which of the following is found both outside bones in the periosteum and inside compact bones in the Haversian canals?
a. calcium-rich rings
b. red bone marrow
c. blood vessels
d. connective tissue
5. Which characteristic describes compact bone?
a. produces blood cells
b. consists of calcified rings
c. cradles bone marrow
d. manufactures calcitonin











Muscular System
Section Quiz
Choose the letter of the best answer.
1. Skeletal muscle is attached to bones by
a. actin fibers.
b. tendons.
c. filaments.
d. myofibrils.

2. Which characteristic describes smooth muscle?
a. found in the intestines
b. under voluntary control
c. has multi-nucleated cells
d. uses a great deal of ATP

3. What is the term that describes the unit of a muscle cell that contains all of the structures necessary to cause contraction?
a. sarcomere
b. Ca2 ion
c. filament
d. myofibril

4. What is the main function of Ca2 ions during muscle contraction?
a. enhancing the effect of neurotransmitters that trigger movement
b. stimulating neurons to use ATP to break the actin-myosin bond
c. binding to regulatory proteins to expose actin binding sites
d. allowing myosin filaments to move faster towards actin filaments

5. Which best describes the role of myosin during muscle contraction?
a. loosens proteins
b. binds Ca2 ions
c. pulls the M line
d. grabs the actin











Integumentary System
Section Quiz
Choose the letter of the best answer.
1. Which is an example of how your integumentary system helps you to maintain homeostasis?
a. by producing sweat to cool your body
b. by pushing waste through the intestines
c. by regulating production of blood cells
d. by delivering unbound calcium to the bones
2. Which of the following parts of your body is made up of keratin?
a. skin
b. hair
c. bone
d. nerves
3. The epidermis layer of your skin contains
a. sweat glands.
b. hair follicles.
c. nerves.
d. dead skin cells.
4. Which of the following is an example of how melanin protects the skin?
a. by building up in thick layers
b. by stopping fungi from growing
c. by absorbing harmful UV rays
d. by allowing the skin to stretch
5. Which of these structures is found in the dermis?
a. sweat and oil glands
b. primarily dead cells
c. keratin and melanin
d. insulating fat layers

Answer 1

Answer:

1. a

2. d

3. c

4. b

5. a

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Answer 2

Answer:

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