Choose three body systems from the list below and discuss some of ...

[ashley]

Choose three body systems from the list below and discuss some of the effects of aging on those systems
 
  cardiovascular system; musculoskeletal system; integumentary system (skin, hair, nails); special senses
  (vision, hearing, taste, smell); nervous system
  What will be an ideal response

Question 2

Stress fractures are most likely to occur in ________.
 
  A) long bones of the foot B) bones of the knee
  C) the hip bones D) bones of the wrist and hand

[sultana.d]

Answer to Question 1

The discussion of age-related changes to the body systems may include the following answers:
  Cardiovascular system
  Maximal heart rate decreases
  Maximal cardiac output decreases
  Buildup of fatty plaque in blood vessels, resulting in atherosclerosis
  Musculoskeletal system
  Bone strength declines with decrease in bone mineral density (osteoporosis).
  Bone mass declines after age 20
  Loss of bone mass accelerates in women after menopause from decline in estrogen
  Loss of connective tissue between joints
  Muscle mass declines after age 20
  Loss of muscle mass results in reduced mobility and independence, increases risk of falls
  Integumentary system (skin, hair, nails)
  Oil production declines, skin and hair become dry
  Changes in connective tissue lead to wrinkles
  Skin pigmentation changes, spots appear
  Hair begins to thin after age 20
  Follicles produce less pigment, hair fades to gray
  Special senses (vision, hearing, taste, smell)
  Loss of ability to focus on close objects (presbyopia)
  Night vision becomes impaired
  Loss of depth perception
  Cellular changes in tongue and nose diminish taste and smell, changes that can contribute to
appetite loss
  Nervous system
  Loss of brain cells (neurons)
  Decrease in neurotransmitters
 Gradual loss of memory.

Answer to Question 2

A

[ashley]

Great answer, keep it coming

[zacnyjessica]

Excellent