Anatomy and Physiology Flashcards
6 cards from real PCT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Anatomy and Physiology flashcards as text
Which body system is responsible for producing hormones that regulate metabolism, growth, and reproduction?
Answer: Endocrine system
The endocrine system consists of glands that secrete hormones directly into the bloodstream to regulate body processes.
The diaphragm is a dome-shaped muscle essential for:
Answer: Breathing
The diaphragm contracts and flattens during inhalation, creating negative pressure in the thoracic cavity that draws air into the lungs.
Which type of blood vessel carries blood AWAY from the heart?
Answer: Arteries
Arteries carry blood away from the heart under high pressure, with thick muscular walls to withstand the force of cardiac contraction.
The normal pH range for human blood is:
Answer: 7.35-7.45
Blood pH is tightly regulated between 7.35 and 7.45, with values outside this range causing life-threatening acid-base imbalances.
Peristalsis refers to:
Answer: Wave-like muscle contractions that move food through the digestive tract
Peristalsis is the rhythmic contraction and relaxation of smooth muscle that propels food through the entire gastrointestinal tract.
Which component of blood is responsible for clotting?
Answer: Platelets (thrombocytes)
Platelets are cell fragments that aggregate at injury sites and form plugs, initiating the clotting cascade to stop bleeding.