Free CNA-Aide Basic Human Anatomy and Age-Related Changes Questions and Answers 1 — Questions and Answers
Question 1: Which age-related change in the integumentary system increases the risk of skin breakdown?
- Increased oil production from sebaceous glands.
- Thicker, more elastic skin in the dermis.
- Loss of fatty tissue and thinning of the epidermis. (Correct answer)
- Increased blood flow to the surface of the skin.
Correct answer: Loss of fatty tissue and thinning of the epidermis.
As people age, the fatty layer beneath the skin thins, and the epidermis becomes more fragile. This lack of natural padding and resilience makes the skin more susceptible to injury from pressure, friction, and shear.
Question 2: A common age-related change in the cardiovascular system is:
- The heart muscle becomes more flexible.
- Blood vessels become more elastic and pliable.
- The heart has to work harder to pump blood. (Correct answer)
- Resting heart rate significantly increases.
Correct answer: The heart has to work harder to pump blood.
With age, blood vessels lose elasticity (a condition known as arteriosclerosis), and the heart muscle may thicken and become less efficient. This combination forces the heart to work harder to circulate blood throughout the body.
Question 3: What is a normal change in the urinary system due to aging?
- The kidneys become more efficient at filtering waste.
- The bladder's capacity to hold urine increases.
- The bladder muscle weakens, leading to less complete emptying. (Correct answer)
- The urge to urinate becomes less frequent.
Correct answer: The bladder muscle weakens, leading to less complete emptying.
The muscles of the bladder weaken with age, which can reduce its overall capacity and lead to incomplete emptying. This change contributes to common issues like urinary frequency, urgency, and incontinence in older adults.
Question 4: Dysphagia, a condition that becomes more common with age, refers to difficulty with:
- Breathing
- Speaking
- Swallowing (Correct answer)
- Hearing
Correct answer: Swallowing
Dysphagia is the medical term for difficulty swallowing. It is a serious condition that can lead to choking, aspiration pneumonia, and malnutrition, and it becomes more common with age due to muscle weakness and neurological changes.
Question 5: Which change in the musculoskeletal system is most responsible for the loss of height in older adults?
- Shrinking of the long bones in the legs.
- Compression of the discs between the vertebrae. (Correct answer)
- Increased curvature of the femur.
- Thickening of the cartilage in the knee joints.
Correct answer: Compression of the discs between the vertebrae.
The intervertebral discs, which act as cushions between the bones of the spine, lose water content and become compressed with age. This gradual compression of the spinal column is the primary reason for the slight loss of height seen in many older adults.
Question 6: An age-related change that affects the respiratory system and increases the risk of pneumonia is:
- Increased lung elasticity.
- A less effective cough reflex. (Correct answer)
- The rib cage becomes more flexible.
- Increased number of alveoli.
Correct answer: A less effective cough reflex.
As people age, the muscles involved in breathing, such as the diaphragm, can weaken. This makes it harder to produce a strong, effective cough to clear secretions from the lungs, which increases the risk for respiratory infections like pneumonia.
Free CNA-Aide Basic Human Anatomy and Age-Related Changes Questions and Answers 1
Which age-related change in the integumentary system increases the risk of skin breakdown?