head Flashcards
WHat are the parts of the cranium?
neurocranium and vicerocranium
Name of the bones of the neurocracium
8 bones
singular: Frontal, ethmoid, sphenoid, occipital
Pairs: temporal and parietal
What makes up the calvaria?
skull cap: frontal prietal and occipital
which bones make up the basicranium?
sphenoid and temporal
Which bones make up the facial skeleton?
Vescerocranium is made up of 15 bones
3 singular: mandible, ethmoid and vomer
6 paired: LeMoN ZIP
Lacrimal, Maxilla, Nasal, Zygomatic, Inferior nasal concha, Palatine
Which bone is part of the both calvaria and basicranium?
ethmoid
WHich bones make up the facial aspect?
frontal bone, zygomatic, maxilla/mandible, orbitals and nasal bones
WHich bones make up the superior aspect?
frontal, parietal pair, and occipital
Where is the foramen magnum found?
cranial base of the nuerocranium: part of the occipital bone and extension of the external occipital crest
which foramens can be found in the external surface of the cranial base?
jugular foramen (internal jugular vein)
carotid canal (internal carotid artery)
and
stylomastoid foramen (faical nerve VII and stylomastoid artery)
Where can the cribiform plate be found? Explain its fucntion
In the anterior fossa on the ethmoid bone for olfactory nerves CN I
True or False : THe sella turcica holds the hypothalumus and can be found in the middle fossa?
False
It is found in the middle fossa but it holds the pituitary gland not the hypothalumus
True or False: the posterior fossa is the largest and lowest or deepest of the three
True
Anterior is the highest and most shallow
WHich of the following are true?
A. The internal acoustic meatus is found in the posterior fossa for CN VIII
B. Jugular Foramen, hypoglossal Canal (below the tongue) and Carotid canal can be found in the middle fossa
C. The F. rotundum, F. ovale and the optic canal are all found in the middle fossa but the Foramen spinosum is located on the posterior fossa
only A is true
B. jugular foramen, hypoglossal canal and carotid canal are all in the posterior fossa
C is false bc all of the fossas mentioned are in the middle fossa
Name the layers of the scalp
Skin
Connective tissue
Aponeurosis
Loose CT
Pericranium
Name of the cranial meninges
DAP
Dura Mater
Arachnoid Mater
Pia Mater
What is a falx cerebri?
Longitudinal cerebral fissure that divides the cerebrum into 2 hemispheres
Which Cranial nerves arise from the cerebrum?
CN I- olfactory
CN II- optic
True or False: THe brainstem is divided into the midbrain, pons, and medulla oblongata and gives rise to 10 CN.
True
Where do CN III and CN IV arise from? What is thier fx?
Arise from midbrain
III- oculomotor
IV- trochlear
WHich of the following are true:
A. CN V is the trigeminal nerve and arises from the pons
B. The pons is responsible for the cough reflex
C. The medulla oblongta is responsible for respiration
D. CN IX, X, and XII arise from the medulla oblongata
A and D are true
B- pons is the control center for respiration and swallowing
C- medulla O is responsible for the cough reflex supressed by opiods directly
Where is CSF made and where is it stored? be specific
CSF is made by the choroid plexus of the lateral ventricles which are connected to the 3rd ventricle by the interventricular foramen. The 3rd ventricle then transports it to the 4th ventricle via the cerebral aqueduct. The 4th ventricle drains the CSF into the subarachnoid space and the spinal cord.
Where do the internal carotid arteries originate from?
common carotid artery
T/F: The anterior and middle cerebral arteries arise from the internal carotid artery.
True
