Exam 4 Skeletal System General Flashcards Preview

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Flashcards in Exam 4 Skeletal System General Deck (89)
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1

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

2

What branch of the Trigeminal (CN-V) passes through the Foramen Rotundum?

Maxillary Branch (V2)

3

What branch of the Trigeminal (CN-V) passes through the Foramen Ovale?

Mandibular Branch (V3)

4

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)

5

What portion of the Sphenoid Bone holds the Pituitary Gland?

Sella Turcica

6

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?

Ethmoid Bone

7

What attaches to the Falx Cerebri (dura mater subdivision that separates right and Left Cerebral Hemispheres)?

Crista Galli

8

The Lateral Masses of the Ethmoid Bone contain what?

Ethmoid Sinuses

9

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

10

What portion of the Ethmoid Bone participate in sense of smell (Olfactory Receptors)?

Olfactory Foramina
Superior Conchae

11

What is the name of the suture that unites the two Parietal Bones?

Sagittal Suture

12

What is the name of the suture that unites the Parietal and Occipital Bone?

Lambdoid Suture

13

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?

Fontanels

14

Name the Major Fontanels?

Anterior
Posterior
Anterolateras
Posterolaterals

15

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)

16

What are the Muscles that move the Mandible?

Masseter
Temporalis
Pterygoids

17

Where do the muscles that move the mandible have their origin and insert where?

Origin: Skull
Insert: Mandible

18

What nerve innervates the muscles that move the mandible?

Trigeminal Nerve (CN-V)

19

Every Muscle of Facial Expression is innervated by which nerve?

Facial Nerve (CN-VII)

20

What muscle originates (arises) from sternum and clavicle and inserts onto mastoid process of the temporal bone?

Sternocleidomastoid

21

What Cranial Nerve innervates the Sternocleidomastoid Muscle?

CN- XI (Accessory)

22

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)

23

Contraction of one Sternocleidomastoid does what?

Laterally flexes the neck and rotates face in opposite direction

24

What muscle group attaches the cervical vertebrae to the uppermost ribs and participate in forced inspiration?

Scalene Muscle Group

25

This muscle group is innervated by cervical spinal nerves (C3-C8) and Flex, laterally flex, and rotate the head?

Scalene Muscle Group

26

What are the muscles of Inhalation broken down by quite and forced Inhalation?

Quite: External Intercostals, Diaphragm
Forced: Sternocleidomastoid
Scalenes

27

What are the muscles of Exhalation (all forced)?

Internal Intercostals
External Oblique
Internal Oblique
Transversus Abdominis
Rectus Abdominis

28

How many bones is the human skeleton made up of?

206

29

What are the principal divisions the adult skeleton is grouped into?

Axial Skeleton
Appendicular Skeleton

30

Of the Axial Skeleton; How many bones make-up the Cranium and Face?

Cranium: 8
Face: 14