BIO 251 HUMAN ANATOMY AND PHYSIOLOGY I PRACTICE TEST 2026 QUESTIONS WITH ANSWERS GRADED A+

BIO 251 HUMAN ANATOMY AND
PHYSIOLOGY I PRACTICE TEST 2026
QUESTIONS WITH ANSWERS GRADED A+

●● Example of cellular level.
Answer: A red blood cell, which is a basic unit of life that carries oxygen
in the bloodstream.


●● Basic functions of the circulatory system.
Answer: Transporting nutrients, gases, hormones, and waste products
throughout the body.


●● Organs of the respiratory system.
Answer: Includes the lungs, trachea, bronchi, and diaphragm.


●● Four abdominopelvic regions.
Answer: Right upper quadrant, left upper quadrant, right lower quadrant,
left lower quadrant.


●● Anatomical/directional terms.
Answer: Terms like anterior (front), posterior (back), superior (above),
inferior (below), medial (toward the midline), and lateral (away from the
midline).

, ●● Dividing planes.
Answer: Sagittal plane (divides left and right), coronal plane (divides
anterior and posterior), and transverse plane (divides superior and
inferior).


●● Separation of thoracic and abdominopelvic cavities.
Answer: The diaphragm separates the thoracic cavity from the
abdominopelvic cavity.


●● Dorsal and ventral cavities.
Answer: Dorsal cavity includes the cranial and spinal cavities; ventral
cavity includes the thoracic and abdominopelvic cavities.


●● Four basic tissue types.
Answer: Epithelial, connective, muscle, and nervous tissue.


●● Characteristics of epithelial tissue.
Answer: Cells are closely packed, have polarity, are avascular, and have
a high regenerative capacity.


●● Basic functions of connective tissue.
Answer: Support, bind other tissues, store energy, and transport
substances.