HESI A2 ANATOMY AND PHYSIOLOGY 2023 EXAM

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HESI A2 ANATOMY AND PHYSIOLOGY 2023 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -100 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: What are hormones?

Answer:

Chemical messengers controlling growth, differentiation & metabolism of cells.

Question 2: What is the effect of steroid hormones?

Answer:

Enter the cell and have a direct effect on the DNA of the nucleus.

Question 3: What structures make up muscle cells?

Answer:

Myofibrils made up of sarcomeres.Question 4: What hormones are released from the posterior lobe of the pituitary?

Answer:

Oxytocin (labor hormone) ADH-Antidiuretic hormone.

Question 5: Which gland is considered the "master gland"?

Answer:

The pituitary gland

Question 6: What is the function of the cerebellum?

Answer:

Muscular coordination.

Question 7: Where is the pituitary gland located?

Answer:

Attached to the hypothalamus by a stalk called the infundibulum.

Question 8: What is the function of adductors?

Answer:

Return the limb back toward the body.

Question 9: What do apocrine sweat glands produce?

Answer:

Secretions contain bits of cytoplasm from cells, attracting bacteria that produces body odor.

Question 10: What protein composes the hair and skin?

Answer:

Keratin

Question 11: What occurs in muscle fibers during contraction?

Answer:

Myosin & actin filaments slide together.

Question 12: What is muscle tissue classified as?

Answer:

Voluntary(skeletal muscles) and involuntary(smooth & cardiac)

Question 13: How do muscles make movement?

Answer:

Contraction in response to nervous stimulation.

Question 14: What is the epidermis?

Answer:

The outermost protective layer of dead keratinized epithelial cells.

Question 15: What is the function of Motor (efferent) neurons?

Answer:

Transmit nerve impulses away from the CNS toward the effector organs such as muscles, glands, and digestive organs.

Question 16: What is the function of extensors?

Answer:

Increase the angle at the joint.

Question 17: What are some important endocrine glands?

Answer:

Thyroid Parathyroid Adrenals Pancreas Gonads (ovaries & testes)

Question 18: What are the layers of the epidermis?

Answer:

Corneum Lucidum Granulosum Germivatum ( basale & spinosum)

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Question 19: How are bones classified?

Answer:

By shape.Long Short

flat irregular sesamoid

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Question 20: What bones make the upper appendicular skeleton?

Answer:

pectoral & shoulder girdle clavicle scapula upper extremities

Question 21: What is the function of protein hormones?

Answer:

Stay at the cell surface and act through second messenger.

Question 22: How long is the spinal cord?

Answer:

18 inches long and extends from the base of the skull to the first or second lumbar vertebrae.

Question 23: What is the dermis?

Answer:

The underlying layer of connective tissue with blood vessels, nerve endings, and the associated skin tissues.

Question 24: What makes up the final part of the axial skeleton?

Answer:

the thorax the sternum 12 pairs of ribs.Question 25: What occurs to osteoblasts when they become fixed in the dense bone matrix?

Answer:

They stop dividing but continue to maintain body tissues as osteocytes.