Muscular

Question 1

Elastic connective tissue

Answer 1

mainly elastic fibers with a minor component of collagen fibers.

Question 2

Structure

Answer 2

• muscles are anchored by tendons
• muscular move bones
• skeletal bones moved at joint by muscle
• nervous impulses
• respiratory - o2 and co2 btwn air and blood
• circulatory - 02 to muscles remove co2

Question 3

Rheumatoid arthritis

Answer 3

A chronic inflammatory disorder affecting many joints, including those in the hands and feet.

Question 4

Arrangements

Answer 4

• antagonistic - opponents
• range of motion - mobility
• synergistic - same function work together
• tone- slight contraction

Question 5

Contraction

Answer 5

• isotonic exercise- bring about movement :jogging lifting weights
• isometric exercise -without movement
• muscle sense-brain knows abt muscle
• stretch receptors -detect changes

Question 6

Sarcolemma

Answer 6

• depolarization - contraction (action potential) makes inside positive and the outside negative
• polarization positive charge outside negative charge inside (resting potential)
• repolarization - impulse along ENTIRE sarcolemma ( action potential)

Question 7

Troponin and tropomyosin

Answer 7

prevent pulling of actin until sarcolemma depolarizes

Question 8

Tetanus and botulism

Answer 8

• tetanus -unable to relax (bacteria clostridium tetani)
• botulism-food poisoning ; diarrhea ,puking, hard to speak or swallow

Question 9

Dystrophy

Answer 9

• genetic disease w/ muscle tissue fixed by fibrous tissue
• Duchenne- sex linked trait (kids) X chromosome and recessive

Question 10

myasthenia gravis

Answer 10

autoimmune disorder extreme muscle fatigue

treatment = cholinesterase med

Question 11

movement

Answer 11

• flexion - decrease
• extension -increase
• adduction -(IN ) CLOSE to midline
• abduction-(out) AWAY
• pronation -down
• supination -palm up

Question 12

movement pt 2

Answer 12

• dorisflection elevate foot
• plantar flexion -point the toes
• inversion - medially to ankle
• eversion-lateral at ankle
• rotation -around longitudinal axis

Question 13

Intramuscular injections

Answer 13

• rapid absorption needed bc muscle has good blood supply .
• safest spot for injection - anterior gluteal site

Question 14

another word for neurotransmitter is

Answer 14

acetylcholine

Question 15

muscles that are unable to contract and will atrophy ; result of nerve damage

Answer 15

paralysis

Question 16

Makes the sarcolemma very permeable to Na ions that enter the cells and reverse charges to negative outside and positive inside

Answer 16

Acetylcholine