BSC 2085L EXAM SCRIPT SPRING 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Skull is composed of the. Answer: cranium and facial bones
◉ 2 Major areas in the cranium. Answer: cranial vault and cranial
floor
◉ cranial vault. Answer: superior, lateral, and posterior walls of skull
◉ cranial floor. Answer: 3 concavities; anterior, middle, and
posterior cranial fossae
◉ Cranium major sutures. Answer: coronal, lambdoid, sagittal,
squamous
◉ Coronal suture. Answer: connects the frontal bone to the parietal
bone
◉ Lambdoid suture. Answer: connects the parietal bone to the
occipital bone
,◉ Sagittal suture. Answer: connects the left and right parietal bones
◉ Squamous suture. Answer: connects the parietal bone to the
temporal bone
◉ Frontal bone structures. Answer: Glabella, Supraorbital foramen
(notch)
◉ Glabella. Answer: located between the orbital cavities
◉ Supraorbital foramen (notch). Answer: opening above each orbit,
passageway for blood vessels and nerves
◉ Parietal bone structures. Answer: sagittal suture, coronal suture
◉ Temporal bone structures. Answer: Squamous region, tympanic
region
◉ Squamous region. Answer: Zygomatic process
◉ Tympanic region. Answer: External acoustic meatus, styloid
process, mastoid region, petrous region
,◉ External acoustic meatus. Answer: ear canal
◉ Styloid process. Answer: muscle/ligament attachment site
◉ Mastoid region. Answer: muscle attachment site (mastoid
process)
◉ Petrous region. Answer: jugular foramen, carotid canal, internal
acoustic meatus
◉ Jugular foramen. Answer: passage for internal jugular vein, cranial
nerves IX (glossopharyngeal), X (vagus), XI (accessory)
◉ Carotid canal. Answer: passage for internal carotid artery
◉ Internal acoustic meatus. Answer: passage for cranial nerves VII
(facial) & VIII (vestibulocochlear)
◉ Occipital bone structures. Answer: Foramen magnum, occipital
condyles, hypoglossal canal
◉ Foramen magnum. Answer: where the spinal cord enters the
cranium to connect to the brain
, ◉ Occipital condyles. Answer: articulation site with 1st cervical
vertebra (atlas)
◉ Hypoglossal canal. Answer: passage for cranial nerve XII
(hypoglossal nerve)
◉ Sphenoid bone structures. Answer: Greater wings, lesser wings,
sella turcica, optic canals
◉ Greater wings of sphenoid. Answer: part of orbital cavity
◉ Lesser wings of sphenoid. Answer: -anchors dura mater (covering
that encloses the brain)
◉ Sella turcica. Answer: midline of sphenoid bone, hypophyseal
fossa here
◉ Hypophyseal fossa. Answer: houses the pituitary gland
◉ Optic canals. Answer: openings at base of lesser wings for cranial
nerve II (optic nerve)
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Skull is composed of the. Answer: cranium and facial bones
◉ 2 Major areas in the cranium. Answer: cranial vault and cranial
floor
◉ cranial vault. Answer: superior, lateral, and posterior walls of skull
◉ cranial floor. Answer: 3 concavities; anterior, middle, and
posterior cranial fossae
◉ Cranium major sutures. Answer: coronal, lambdoid, sagittal,
squamous
◉ Coronal suture. Answer: connects the frontal bone to the parietal
bone
◉ Lambdoid suture. Answer: connects the parietal bone to the
occipital bone
,◉ Sagittal suture. Answer: connects the left and right parietal bones
◉ Squamous suture. Answer: connects the parietal bone to the
temporal bone
◉ Frontal bone structures. Answer: Glabella, Supraorbital foramen
(notch)
◉ Glabella. Answer: located between the orbital cavities
◉ Supraorbital foramen (notch). Answer: opening above each orbit,
passageway for blood vessels and nerves
◉ Parietal bone structures. Answer: sagittal suture, coronal suture
◉ Temporal bone structures. Answer: Squamous region, tympanic
region
◉ Squamous region. Answer: Zygomatic process
◉ Tympanic region. Answer: External acoustic meatus, styloid
process, mastoid region, petrous region
,◉ External acoustic meatus. Answer: ear canal
◉ Styloid process. Answer: muscle/ligament attachment site
◉ Mastoid region. Answer: muscle attachment site (mastoid
process)
◉ Petrous region. Answer: jugular foramen, carotid canal, internal
acoustic meatus
◉ Jugular foramen. Answer: passage for internal jugular vein, cranial
nerves IX (glossopharyngeal), X (vagus), XI (accessory)
◉ Carotid canal. Answer: passage for internal carotid artery
◉ Internal acoustic meatus. Answer: passage for cranial nerves VII
(facial) & VIII (vestibulocochlear)
◉ Occipital bone structures. Answer: Foramen magnum, occipital
condyles, hypoglossal canal
◉ Foramen magnum. Answer: where the spinal cord enters the
cranium to connect to the brain
, ◉ Occipital condyles. Answer: articulation site with 1st cervical
vertebra (atlas)
◉ Hypoglossal canal. Answer: passage for cranial nerve XII
(hypoglossal nerve)
◉ Sphenoid bone structures. Answer: Greater wings, lesser wings,
sella turcica, optic canals
◉ Greater wings of sphenoid. Answer: part of orbital cavity
◉ Lesser wings of sphenoid. Answer: -anchors dura mater (covering
that encloses the brain)
◉ Sella turcica. Answer: midline of sphenoid bone, hypophyseal
fossa here
◉ Hypophyseal fossa. Answer: houses the pituitary gland
◉ Optic canals. Answer: openings at base of lesser wings for cranial
nerve II (optic nerve)
