415 - AP PG 2011 (Andhra pradesh) ANATOMY questions with answers

1q: All of the following muscles are part of rotator cuff except
a. Deltoid
b. Supraspinatus
c. Infraspinatus
d. Teres minor

answera. Deltoid

2q: All of the following are branches of celiac trunk except
a. Left gastric artery
b. Common hepatic artery
c. Splenic artery
d. Superior mesenteric artery

answerd. Superior mesenteric artery

3q: All of the following are seen in the greater wing of sphenoid except
a. Foramen ovale
b. Foramen spinosum
c. Foramen rotundum
d. Optic canal

answerd. optic canal

The superior or cerebral surface of each greater wing forms part of the middle cranial fossa; it is deeply concave, and presents depressions for the convolutions of the temporal lobe of the brain. It has a number of foramina (holes) in it:
The foramen rotundum is a circular aperture at its anterior and medial part; it transmits the maxillary nerve.
The foramen ovale is behind and lateral to this; it transmits the mandibular nerve, the accessory meningeal artery, and sometimes the lesser petrosal nerve.
The sphenoidal emissary foramen is occasionally present; it is a small aperture medial to the foramen ovale, opposite the root of the pterygoid process; it opens below near the scaphoid fossa, and transmits a small vein from the cavernous sinus.
The foramen spinosum, in the posterior angle near to and in front of the spine; it is a short canal which transmits the middle meningeal vessels and a recurrent branch from the mandibular nerve.

The lateral surface is convex, and divided by a transverse ridge, the infratemporal crest, into two portions.
The superior temporal surface, convex from above downward, concave from before backward, forms a part of the temporal fossa, and gives attachment to the temporalis;
the inferior infratemporal surface, smaller in size and concave, enters into the formation of the infratemporal fossa, and, together with the infratemporal crest, serves as an attachment to the lateral pterygoid muscle.
It is pierced by the foramen ovale and foramen spinosum, and at its posterior part is the sphenoidal spine, which is frequently grooved on its medial surface for the chorda tympani nerve.
To the sphenoidal spine are attached the sphenomandibular ligament and the tensor veli palatini muscle.
Medial to the anterior extremity of the infratemporal crest is a triangular process which serves to increase the attachment of the lateral pterygoid muscle; extending downward and medialward from this process on to the front part of the lateral pterygoid plate is a ridge which forms the anterior limit of the infratemporal surface, and, in the articulated skull, the posterior boundary of the pterygomaxillary fissure.

4q: All of the following are included in basal ganglia except
a. Lenticular nucleus
b. Globus pallidus
c. Thalamus
d. Claustrum

answerc. Thalamus

The claustrum, which is suspected to be present in all mammals, is a fairly thin (fraction of 1 mm to multiple mms) vertical curved sheet of subcortical gray matter oriented sagittally between the white matter tracts of the external capsule and extreme capsule. The Claustrum is lateral to the putamen and medial to the insular cortex and is considered by some sources to be part of the basal ganglia. There are lateral and medial tracts connecting to many cortices and perhaps to the hippocampus, the amygdala, and the caudate nucleus (connections with subcortical centers are a matter of debate).