ATI TEAS 7
Anatomy
1. Scoliosis is a condition characterized by abnormal lateral curvature of the spine. Which part of the spine is most commonly affected?
- A. Cervical spine (neck)
- B. Thoracic spine (upper back)
- C. Lumbar spine (lower back)
- D. All of the above
Correct answer: B
Rationale: The correct answer is B: Thoracic spine (upper back). Scoliosis typically affects the thoracic spine more commonly than the cervical or lumbar spine. The thoracic spine, which is the upper back region, is the most common area for the abnormal lateral curvature of the spine to occur in cases of scoliosis. This is due to the natural curvature and structure of the spine in this region. While scoliosis can affect other parts of the spine as well, the thoracic spine is most frequently impacted, making it the correct answer in this case.
2. What happens to the density of a substance if its mass increases while its volume remains constant?
- A. Density increases
- B. Density decreases
- C. Density remains constant
- D. Density becomes zero
Correct answer: a
Rationale: Density is the ratio of mass to volume. If the mass increases while the volume remains constant, the density will increase as there is more mass in the same volume.
3. What is the scientific term for the windpipe, a tube that carries air from the larynx to the bronchi?
- A. Pharynx
- B. Trachea
- C. Epiglottis
- D. Bronchiole
Correct answer: B
Rationale: The correct answer is B: Trachea. The trachea is the scientific term for the windpipe, which is a tube that carries air from the larynx to the bronchi. The pharynx is the throat area where the mouth and nasal passages meet. The epiglottis is a flap of tissue that covers the trachea during swallowing to prevent food from entering the airway. Bronchioles are smaller airway branches in the lungs. Therefore, the trachea best fits the description of a tube carrying air from the larynx to the bronchi.
4. What happens to the work done on an object when the angle between force and displacement is 90 degrees?
- A. Maximum work is done
- B. No work is done
- C. Minimum work is done
- D. Work is infinite
Correct answer: b
Rationale: When the angle between force and displacement is 90 degrees, the work done on the object is zero.
5. The process of a liquid changing into a gas is called:
- A. Evaporation
- B. Boiling
- C. Condensation
- D. Sublimation
Correct answer: A
Rationale: Evaporation occurs at any temperature, while boiling only occurs at the boiling point of the liquid.
6. What is the largest muscle in the human body?
- A. Gluteus maximus (buttocks)
- B. Quadriceps femoris (thighs)
- C. Erector spinae (back)
- D. Pectoralis major (chest)
Correct answer: A
Rationale: The gluteus maximus is the largest muscle in the human body, located at the back of the hip and extending from the sacrum to the femur. It is a powerful muscle that plays a crucial role in extending the hip joint, enabling walking, running, and climbing stairs.
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