Human Anatomy Lab: Practical #2 Questions and Answers

STATION 1 (Eye)

1. What is inside A? - Posterior segment >>> Vitreous humor.
2. Identify B - Superior oblique.
3. Name the nerve that innervates B - Superior oblique >>> CN IV/trochlear.

STATION 2 (Arm)

1. Action of A – Extension of forearm.
2. Identify B – Brachioradialis.
3. Name 2 of the 4 muscles that make up the rotator cuff – Any two of: Supraspinatus, Infraspinatus, Subscapularis, Teres minor.

STATION 3 (Brain)

1. What is the origin of A (CN I)? - Forebrain
2. What kind of function (sensory - S, motor - M or both - B) does B (CN XI) have? - Motor
3. What is the parasympathetic function of C (CN X)? - Innervates glands and smooth muscles of the gut, heart, lungs and pharynx

STATION 4 (Brain)

1. Identify A – Superior sagittal sinus.
2. What passes through here (at B) – Olfactory nerves.
3. Identify C – 4th ventricle.

STATION 5 (Leg)

1. Identify A – Tensor fasciae latae.
2. What is the origin of B – Ischial tuberosity/Ischium.
3. What is the function of C (both) – Eversion + Plantar flexion.

STATION 6 (Ear)

1. Identify A - Semicircular duct.
2. Identify B - Stapedius muscle.
3. Identify C - Round window.

STATION 7 (Nervous System)

1. Identify A – Cerebral aqueduct.
2. Identify B (specific) – Pons.
3. Identify C – Quadratus lumborum.

STATION 8 (Head Muscles)

1. Identify A – Orbicularis oris.
2. Identify A – Frontal belly of epicranius/Epicranius frontalis.
3. What is the function of C – Closing jaw/chewing.

STATION 9 (Plexuses)

1. Identify A - Sciatic nerve.
2. Identify B - Radial nerve.
3. Which nerve innervates C? - Diaphragm >>> Phrenic nerve.

STATION 10 (Joints)

1. Identify A – Patellar ligament.
2. Identify B – (Medial) meniscus.
3. Identify C (no abbreviation!) – Anterior Cruciate Ligament.

STATION 11 (Muscles)

1. Identify A – Pectoralis minor.
2. Identify B – Internal oblique.
3. Identify C – Transverse abdominus.

STATION 12 (Eye)

1. Identify A - Fovea centralis.
2. Identify B? - Ciliary body.
3. Which nerve innervates C? - Orbicularis oculi >>> Facial.

STATION 13 (Brain)

1. Identify A – Corpora quadrigemina (Superior and Inferior Colliculi)
2. What is “A” responsible for? – Coordiantes head movement with vision and sound.
3. Identify C – Sigmoid sinus.

STATION 14 (Arm)

1. Identify A – Coracobrachialis.
2. Action of B – Flexion of the forearm.
3. Identify C – Supraspinatus.

STATION 15 (Nose + Tongue)

1. Identify A - Olfactory eptithelium.
2. Which nerve is responsible for the perception of taste in the posterior third of the tongue? - CN IX/glossopharynheal.
3. Which nerve controls the muscles of the tongue? - CN XII/hypoglossal.

STATION 16 (Spinal Cord)

1. Identify A – Ventral rootlets.
2. Is “A” motor, sensory, or both? – Motor.
3. Identify C (the opening) – Gray commissure/Central canal.

STATION 17 (Muscles)

1. What bone is the insertion of A? – Humerus.
2. What bone does B move? – Scapula.
3. Name 2 antagonists in head movement (flexion-extension) – Sternocleidomastoid and Splenius.

STATION 18 (Head + Eye)

1. Which nerve controls A – the parotid salivary gland? - CN IX/glossopharyngeal, parasympathetic division.
2. Identify B - Lacrimal gland.
3. Which nerve controls B? - Lacrimal gland >>> CN VII/facial, parasympathetic division.

STATION 19 (Leg Muscles)

1. Identify A – Pectineus.
2. Action of B – Flexion of thigh/trunk.
3. Insertion of C – Calcaneus.

STATION 20 (Joints)

1. Name the functional classification of this joint (A) – Amphiarthroses.
2. What action is permitted at C? – Gliding (plane joint).
3. Name the structural classification of this joint (B) – Synovial.

STATION 21 (Brain)

1. Identify A – Cerebral peduncles.
2. Identify B – Corpus callosum.
3. What type of tracts are “B”? – Commissural.

STATION 22 (Spinal Cord)

1. Identify A – Sympathetic ganglion/trunk.
2. Identify B – Dorsal root ganglion.
3. Identify C (the layer) – Pia mater.

STATION 23 (Muscles)

1. Identify A – Gracialis.
2. Identify B – Soleus.
3. Action of C – Flexion of femur and extension of knee (one answer is enough).

STATION 24 (Ear)

1. Identify A - Cochlear/Vestibulocochlear nerve.
2. Identify B - Organ of Corti.
3. What is inside C? - Perilymph.

STATION 25 (Muscles)

1. What muscle originates at A? – Deltoid.
2. What muscle originates at B? – Biceps brachii (short head.)
3. What muscle cover C? – Subscapularis.

STATION 1