HONDROS BIO 253 EXAMINATION SCRIPT 2026 COMPLETE QUESTIONS WITH FULL SOLUTIONS

HONDROS BIO 253 EXAMINATION SCRIPT
2026 COMPLETE QUESTIONS WITH FULL
SOLUTIONS

◉ left iliac region contents.
Answer: portions of the colon and the small intestine


◉ Directional terms.
Answer: -Posterior/anterior
-superior/inferior
-proximal/distal
-superficial/deep
-medial/lateral


◉ body planes.
Answer: sagittal--lengthwise plane running front to back and top to
bottom, dividing the body or any parts into right and left sides
coronal--dividing body or any parts into anterior or posterior
portions
transverse--divides body or any parts into upper and lower parts
(aka horizontal)

, ◉ Homeostasis.
Answer: the relatively constant states maintained by the body-
internal environment around body cells remains constant; example
body temperature, blood glucose


◉ Positive feedback loop.
Answer: amplifies or reinforces a change; blood clotting and uterine
contractions


◉ negative feedback loop.
Answer: opposes or negates a change; stabilize physiological
variables; responsible for maintaining a constant internal
environment; ie-body temp falls below set point value, the response
is to shiver and produce heat to return to the set point temp


◉ 4 basic components of every feedback control loop.
Answer: sensor mechanism
integrator or control center
effector mechanism
feedback


◉ afferent and efferent movement of signals.
Answer: afferent moves towards