Mastering AP questions
Which facial bones fuse to form the upper jaw?
maxillary
Which surface of the maxillary bones fuse together?
medial
Name the opening in the occipital bone through which the spinal cord passes.
Foramen magnum
Identify the area of the occipital bone that articulates with the vertebral column.
Occipital condyles
Which nerve innervates the diaphragm?
phrenic
Which nerve from the brachial plexus innervates the extensor muscles of the arm and forearm?
radial
Spinal nerves from the brachial plexus innervate the
shoulder girdle and upper limb
Identify the hole that marks the opening of the ear canal on the superficial surface of the skull.
External acoustic meatus
The phrenic nerves arise from the
cervical plexus
The primary connection between cerebral hemispheres is the
corpus callosum
The occipital bone forms part of the:
cranium
In adults, the spinal cord usually extends to which level?
first or second lumbar vertebra
The area anterior to the central sulcus is the
frontal lobe
Enlargements of the spinal cord occur
in the cervical and lumbar regions
Damage to the hypoglossal nerve may result in the ________.
inability to speak
Which of the following pairs is not properly matched? - lumbar spinal nerves: 4 - sacral spinal nerves: 5 - coccygeal spinal nerves: 1 - thoracic spinal nerves: 12 - cervical spinal nerves: 8
lumbar spinal nerves: 4
The cortex inferior to the lateral sulcus is the
temporal lobe
The thalamus is the largest portion of which major brain region?
diencephalon
Which gives the correct order of meninges from outside to inside? pia mater, arachnoid, dura mater dura mater, arachnoid, pia mater arachnoid, pia mater, dura mater dura mater, pia mater, arachnoid
dura mater, arachnoid, pia mater
The two cerebral hemispheres are separated by which of the following?
longitudinal fissure
Which of the following structures is the most superficial? Dural sinus Arachnoid mater Dura mater Pia mater
Dura mater
Which of the following bones is not a facial bone? Zygomatic Ethmoid Maxillary Inferior nasal concha
Ethmoid
Which cranial nerve is responsible for the motor innervation of pharyngeal muscles and parotid salivary glands?
IX
Where is the mandibular fossa located?
Inferior surface of the zygomatic process
Identify the small hole on the maxillary bone located below the orbit.
Infraorbital foramen
Identify the region of the mandible that forms part of the temporomandibular joint.
Mandibular condyle
Identify the region of the temporal bone that articulates with the lower jaw.
Mandibular fossa
Identify the region of the temporal bone that articulates with the mandible.
Mandibular fossa
Which of the following locations is not formed by part of the maxillae?
Nasal septum
Identify the posterior most region of the hard palate.
Palatine bones
Which facial bones form the roof of the mouth?
Palatine bones and maxillary bones
Which part of the maxillary bones form the roof of the mouth?
Palatine processes
Identify the location of the occipital bone.
Posterior surface and base of the cranium
Which of the following statements is correct? - Both cranial and spinal nerves are part of the CNS - Spinal nerves are sensory, whereas cranial nerves are motor - Spinal nerves are located in the PNS, whereas cranial nerves are located in the CNS - Spinal nerves outnumber cranial nerves.
Spinal nerves outnumber cranial nerves.
Identify the landmark on the temporal bone that is a pointy spine.
Styloid process
Which cranial nerve is responsible for the sensory innervation of the anterior two-thirds of the tongue?
VII
What bone forms part of the nasal septum?
Vomer
The ________ is the layer of the meninges that is in direct contact with the surface of the brain
pia matter
Nerve trunks containing axons derived from several spinal nerves originate from
plexuses
The cranial nerve that has three branches is the
trigeminal
The entire spinal cord is divided into ________ segments.
31
Identify the best description of the mandibular condyle.
A projection on the mandible
Identify the best description of the mandibular fossa.
A shallow depression
The cranial nerves whose primary function is special sensory are
I, II, and VIII
Identify the region of the temporal bone found superior to the external acoustic meatus that articulates with the parietal bone.
Squamous part
Motor innervation of the muscles of facial expression is transmitted through which cranial nerve?
VII
Identify the region of the temporal bone that forms part of the zygomatic arch.
Zygomatic process
The brachial plexus nerve that innervates the flexor muscles of the arm and forearm and the skin on the lateral surface of the forearm is the ________ nerve.
musculocutaneous
Which facial bones makeup the central portion of the bridge of the nose?
nasal
Damage to the ________ nerve, which is vital for the autonomic control of visceral function, could result in death.
vagus
Which of the following is cranial nerve (CN) X?
vagus
Identify the small facial bones found in the medial wall of the orbit.
lacrimal
Identify the large suture on the posterior surface of the skull at the border of the occipital bone.
lambdoid
The abducens nerve innervates which extrinsic eye muscle?
lateral rectus
The two cerebral hemispheres are separated by the
longitudinal fissure
What is the anatomical name for the facial bones known as "cheekbones"?
zygomatic bones