Ch. 32 Scantron Test Prep Notes – Skeletal, Muscular and Integumentary Systems
SKELETON QUESTIONS
1-Why is cartilage important?
IT ACTS AS CUSHION BETWEEN BONES AND PROTECTS THEM AS THEY MOVE
AGAINST EACH OTHER
2-What are the components of the axial skeleton?
SKULL, VETEBRAL COLUMN, RIBS
3-What is the main function of the skull?
TO PROTECT YOUR BRAIN
4-Where are the Haversian Canals? (See p. 924)
IN THE COMPACT BONE LAYER
5-Which layer of bone absorbs force on the bone? (See p. 924)
THE SPONGY BONE
6-What is the periosteum? (See p. 924)
A TOUGH LAYER OF CONNECTIVE TISSUE SURROUNDING A BONE
MUSCLE QUESTIONS
1-Which types of muscle contract without stimulation from the nervous system?
SMOOTH AND CARDIAC
2-Which type of muscle has the greatest number of mitochondria?
SKELETAL MUSCLES
3-Which muscle lines the digestive tract? (See photographs on p. 929)
SMOOTH MUSCLE
4-Which muscles are striated? (See photographs on p. 929)
CARDIAC & SKELETAL
5-Why must enzymes destroy acetylcholine in the neuromuscular junction?
TO PREVENT THE MUSCLE FROM CONTRACTING UNCONTROLLABLY
6-What happens when the thin filaments in a muscle slide over the thick filaments?
THE MUSCLE CONTRACTS
7-In the sliding filament model, what would happen if myosin did not attach to actin filaments?
THE MUSCLE WOULD BE PERMANENTLY RELAXED
8-What causes the elbow to bend?
BICEP MUSCLE CONTRACTS
9-Which structure joins skeletal muscle to bone?
TENDON
10-What do ligaments connect?
BONES
11-What is a common myth about exercise?
MYTH-EXERCISE INCREASES THE NUMBER OF MUSCLES
SKIN QUESTIONS
1-What is the most important function of the skin?
PROTECTION
2-What happens when the keratin-producing cells of the skin die?
A WATERPROOF COATING IS FORMED
3-What makes hair strong and moist?
SEBACEOUS GLANDS
4-What does human hair and a bird’s feathers have in common?
KERATIN protein
5-What are hives?
FLUID FROM BLOOD VESSELS IS OOZING INTO SURROUNDING TISSUE CAUSING
SWELLING
6-Why are some acnes treated with antibiotics?
TO KILL THE BACTERIA TRAPPED IN THE PORES
7-What is a potential sign of skin cancer?
A MOLE WITH AN IRREGULAR BORDER
SUDDEN CHANGE IN A MOLE’S APPEARANCE
A SORE THAT DOES NOT HEAL
8-Which skin cancer is mostly likely to spread/metastasize?
MELANOMA
9-What is the root of a hair called?
HAIR FOLLICLE