Ivy Tech Community College
★
BAL · 101 YHPA
★ ★
IVY TECH School of Health Sciences — Anatomy & Physiology
EST. 1963
CHANGING LIVES · BUILDING INDIANA
APHY 101 — Lab Midterm Examination
A N ATO M Y & P H YS I O LO G Y I — L A B O RATO RY I D E N T I F I C AT I O N
INSTITUTION Ivy Tech Community College COURSE CODE APHY 101
PROGRAM Anatomy & Physiology I — ACADEMIC YEAR
Laboratory
EXAM TITLE Lab Midterm — Structure TOTAL QUESTIONS 42 Questions
Identification & Terminology
COURSE TITLE Anatomy & Physiology I for Health FORMAT Multiple Choice — Select the
Sciences Single Best Answer
EXAMINATION INSTRUCTIONS
▸ Identify the anatomical structure, region, or directional term described in each question.
▸ Questions cover muscles, bones, body cavities, abdominal regions, quadrants, and directional
terminology.
▸ Each structure or term is drawn from standard APHY 101 laboratory identification protocols.
▸ Correct answers and detailed anatomical rationales appear below each question.
▸ All content reflects current Human Anatomy & Physiology Society (HAPS) learning outcomes.
, LAB MIDTERM — MUSCLES, BONES, BRAIN, BODY
Questions 1 – 42
CAVITIES, REGIONS & DIRECTIONAL TERMS
1. On a laboratory model of the anterior neck and floor of the mouth, the tongue muscle that
protrudes the tongue and is innervated by the hypoglossal nerve (CN XII) is identified as
the:
A. Geniohyoid muscle
B. Masseter muscle
C. Genioglossus muscle
D. Platysma muscle
CORRECT ANSWER C — Genioglossus muscle
RATIONALE The genioglossus muscle is the primary tongue protrusor, originating from the
genial tubercle of the mandible and inserting into the tongue. It is innervated by
the hypoglossal nerve (CN XII). The geniohyoid (option A) is a suprahyoid muscle
that elevates the hyoid bone, not a tongue muscle. The masseter (option B) is a
muscle of mastication. The platysma (option D) is a superficial neck muscle that
tenses the skin of the neck. On lab models, the genioglossus is visible as a fan-
shaped muscle extending from the internal mandible into the tongue body.
, 2. Located superior to the hyoid bone and deep to the genioglossus, which narrow, strap-like
suprahyoid muscle is identified on the anterior neck lab model as the:
A. Sternocleidomastoid muscle
B. Trapezius muscle
C. Platysma muscle
D. Geniohyoid muscle
CORRECT ANSWER D — Geniohyoid muscle
RATIONALE The geniohyoid muscle is a narrow, strap-like suprahyoid muscle located superior
to the hyoid bone and deep to the genioglossus. It originates from the inferior
mental spine of the mandible and inserts on the hyoid bone, functioning to
elevate the hyoid and depress the mandible. It is innervated by C1 via the
hypoglossal nerve. The sternocleidomastoid (option A) is a large lateral neck
muscle. The trapezius (option B) is a posterior neck and back muscle. The
platysma (option C) is a superficial anterior neck muscle.
3. On the lateral neck and thorax lab model, the large, prominent muscle with two heads
(sternal and clavicular) that rotates and flexes the head is identified as the:
A. Trapezius muscle
B. Platysma muscle
C. Sternocleidomastoid muscle
D. Masseter muscle
CORRECT ANSWER C — Sternocleidomastoid muscle
RATIONALE The sternocleidomastoid (SCM) is the prominent lateral neck muscle with two
heads of origin — the sternal head from the manubrium and the clavicular head
from the medial clavicle — inserting on the mastoid process. It functions in
contralateral head rotation and ipsilateral lateral flexion. It is innervated by the
accessory nerve (CN XI). The trapezius (option A) is a posterior muscle. The
platysma (option B) is superficial and thin. The masseter (option D) is a facial
muscle of mastication.
★
BAL · 101 YHPA
★ ★
IVY TECH School of Health Sciences — Anatomy & Physiology
EST. 1963
CHANGING LIVES · BUILDING INDIANA
APHY 101 — Lab Midterm Examination
A N ATO M Y & P H YS I O LO G Y I — L A B O RATO RY I D E N T I F I C AT I O N
INSTITUTION Ivy Tech Community College COURSE CODE APHY 101
PROGRAM Anatomy & Physiology I — ACADEMIC YEAR
Laboratory
EXAM TITLE Lab Midterm — Structure TOTAL QUESTIONS 42 Questions
Identification & Terminology
COURSE TITLE Anatomy & Physiology I for Health FORMAT Multiple Choice — Select the
Sciences Single Best Answer
EXAMINATION INSTRUCTIONS
▸ Identify the anatomical structure, region, or directional term described in each question.
▸ Questions cover muscles, bones, body cavities, abdominal regions, quadrants, and directional
terminology.
▸ Each structure or term is drawn from standard APHY 101 laboratory identification protocols.
▸ Correct answers and detailed anatomical rationales appear below each question.
▸ All content reflects current Human Anatomy & Physiology Society (HAPS) learning outcomes.
, LAB MIDTERM — MUSCLES, BONES, BRAIN, BODY
Questions 1 – 42
CAVITIES, REGIONS & DIRECTIONAL TERMS
1. On a laboratory model of the anterior neck and floor of the mouth, the tongue muscle that
protrudes the tongue and is innervated by the hypoglossal nerve (CN XII) is identified as
the:
A. Geniohyoid muscle
B. Masseter muscle
C. Genioglossus muscle
D. Platysma muscle
CORRECT ANSWER C — Genioglossus muscle
RATIONALE The genioglossus muscle is the primary tongue protrusor, originating from the
genial tubercle of the mandible and inserting into the tongue. It is innervated by
the hypoglossal nerve (CN XII). The geniohyoid (option A) is a suprahyoid muscle
that elevates the hyoid bone, not a tongue muscle. The masseter (option B) is a
muscle of mastication. The platysma (option D) is a superficial neck muscle that
tenses the skin of the neck. On lab models, the genioglossus is visible as a fan-
shaped muscle extending from the internal mandible into the tongue body.
, 2. Located superior to the hyoid bone and deep to the genioglossus, which narrow, strap-like
suprahyoid muscle is identified on the anterior neck lab model as the:
A. Sternocleidomastoid muscle
B. Trapezius muscle
C. Platysma muscle
D. Geniohyoid muscle
CORRECT ANSWER D — Geniohyoid muscle
RATIONALE The geniohyoid muscle is a narrow, strap-like suprahyoid muscle located superior
to the hyoid bone and deep to the genioglossus. It originates from the inferior
mental spine of the mandible and inserts on the hyoid bone, functioning to
elevate the hyoid and depress the mandible. It is innervated by C1 via the
hypoglossal nerve. The sternocleidomastoid (option A) is a large lateral neck
muscle. The trapezius (option B) is a posterior neck and back muscle. The
platysma (option C) is a superficial anterior neck muscle.
3. On the lateral neck and thorax lab model, the large, prominent muscle with two heads
(sternal and clavicular) that rotates and flexes the head is identified as the:
A. Trapezius muscle
B. Platysma muscle
C. Sternocleidomastoid muscle
D. Masseter muscle
CORRECT ANSWER C — Sternocleidomastoid muscle
RATIONALE The sternocleidomastoid (SCM) is the prominent lateral neck muscle with two
heads of origin — the sternal head from the manubrium and the clavicular head
from the medial clavicle — inserting on the mastoid process. It functions in
contralateral head rotation and ipsilateral lateral flexion. It is innervated by the
accessory nerve (CN XI). The trapezius (option A) is a posterior muscle. The
platysma (option B) is superficial and thin. The masseter (option D) is a facial
muscle of mastication.
