Flashcards in Exam 4 Skeletal System General Deck (89)
What portion of the Sphenoid Bone is the passageway for the Oculomotor Nerve (CN-III), Trochlear Nerve (CN-IV), Abducens Nerve (CN-VI), and Ophthalmic Branch (V1) of Trigeminal Nerve?
Superior Orbital Fissure
What branch of the Trigeminal (CN-V) passes through the Foramen Rotundum?
Maxillary Branch (V2)
What branch of the Trigeminal (CN-V) passes through the Foramen Ovale?
Mandibular Branch (V3)
What does the pneumonic Standing Room Only stand for? Regarding Branches of Trigeminal Nerve (CN-V)
-Superior Orbital Fissure (V1)
-Foramen Rotundum (V2)
-Foramen Ovale (V3)
What portion of the Sphenoid Bone holds the Pituitary Gland?
What bone forms part of the Anterior portion of the cranial floor, medial wall of the orbits, superior portion of nasal septum, and superior side walls of the nasal cavity?
What attaches to the Falx Cerebri (dura mater subdivision that separates right and Left Cerebral Hemispheres)?
The Lateral Masses of the Ethmoid Bone contain what?
What portions of the Ethmoid Bone increase vascular surface (warms air) and causes inhaled air to swirl and impact mucus (Filters Air)?
Superior and Middle Nasal Conchae
What portion of the Ethmoid Bone participate in sense of smell (Olfactory Receptors)?
What is the name of the suture that unites the two Parietal Bones?
What is the name of the suture that unites the Parietal and Occipital Bone?
What are areas of dense connective tissue membrane-filled spaces between cranial bones of fetuses and infants that remain unossified at birth but close early in childhood?
Name the Major Fontanels?
What are the Major Functions of the Fontanels?
-Enable fetal skull to modify size and shape as it passes through birth canal
-Permit rapid growth of the brain (Infancy)
What are the Muscles that move the Mandible?
Where do the muscles that move the mandible have their origin and insert where?
What nerve innervates the muscles that move the mandible?
Trigeminal Nerve (CN-V)
Every Muscle of Facial Expression is innervated by which nerve?
Facial Nerve (CN-VII)
What muscle originates (arises) from sternum and clavicle and inserts onto mastoid process of the temporal bone?
What Cranial Nerve innervates the Sternocleidomastoid Muscle?
CN- XI (Accessory)
Contraction of both Sternocleidomastoid Muscles causes the head and cervical vertebrae to do what?
-Flexes the cervical vertebrae (Chin to manubrium)
-Extends Head (thrust chin forward, keeping head level)
Contraction of one Sternocleidomastoid does what?
Laterally flexes the neck and rotates face in opposite direction
What muscle group attaches the cervical vertebrae to the uppermost ribs and participate in forced inspiration?
Scalene Muscle Group
This muscle group is innervated by cervical spinal nerves (C3-C8) and Flex, laterally flex, and rotate the head?
Scalene Muscle Group
What are the muscles of Inhalation broken down by quite and forced Inhalation?
Quite: External Intercostals, Diaphragm
What are the muscles of Exhalation (all forced)?
How many bones is the human skeleton made up of?
What are the principal divisions the adult skeleton is grouped into?