Home › Certifications › HS Anatomy & Physiology › Muscular System
8 multiple-choice questions and 11 flashcards on Muscular System, about 5% of the HS Anatomy & Physiology bank. Every one carries a written rationale.
Muscular System is one of 13 chapters in CoStudy's HS Anatomy & Physiology bank, and it holds 8 of the bank's 150 multiple-choice questions — roughly 5% of the total. That proportion is not arbitrary: chapters follow the certifying body's published exam outline, and the number of questions in each is set by that domain's published weight, so the share of your practice time this chapter takes matches the share of the real exam it accounts for.
Studying by chapter is worth doing once you have a diagnostic score. A single overall percentage tells you whether you are close; it does not tell you which domain is dragging. Working a weak chapter in isolation, and re-testing it in isolation, is the fastest way to move a score that has stalled — and it is why the mock exams in CoStudy report by domain rather than as one number.
1 questions drawn from this chapter, with the full rationale shown — the controlling principle behind the right answer, and why each wrong option tempts and fails.
Blood flow through the heart follows which sequence?
Answer: D — Right atrium → right ventricle → lungs → left atrium → left ventricle → body
Deoxygenated blood enters the right atrium → right ventricle → pulmonary arteries → lungs → pulmonary veins → left atrium → left ventricle → aorta → body.
4 cards from the 11 in this chapter.
Origin vs insertion?
Origin: stationary attachment. Insertion: moving attachment. Muscle pulls insertion toward origin.
Reflex arc?
Sensory neuron → spinal cord → motor neuron → response. Bypasses brain for speed (e.g., knee-jerk).
Cerebrum's main function?
Higher functions — thought, memory, language, voluntary movement, sensation. Largest brain part.
Major muscles?
Biceps brachii (flex elbow), triceps (extend), quadriceps (extend knee), hamstrings (flex), gastrocnemius (calf).
These are a sample. The full Muscular System chapter runs 19 items with per-chapter progress tracking, on the web and in the iOS app.
Open HS Anatomy & Physiology in CoStudy →