A Exam 2 Part 1 Flashcards Preview

Biology 150 > A Exam 2 Part 1 > Flashcards

Flashcards in A Exam 2 Part 1 Deck (29)
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1
Q

Skull

A

cranium and facial bones

2
Q

cranial bones

A

8-encase brain and sensory organs

3
Q

Frontal bone

A
  1. forehead
    superciliary arches
    supraorbital foramina
    frontal sinuses
4
Q

parietal

A

2 -cranial bones

superior and inferior temporal lines

5
Q

temporal

A

2 -cranial bones
zgyomatic processes
externalacoustic/auditory meatus/canal –auditory ossicles
styloid process
mastoid process
mandibular fossa –temporomandiubular joint
stylomastoid foramen
petrous region -floor of cranium –carotid canal –jugular foramen
internal acoustic/auditory meatus/canal

6
Q

occipital

A
1 -cranial bone posterior/base of skull
foramen magnum
occipital condyles
hypoglossal canals
external occipital protuberance
7
Q

sphenoid bone

A
1 cranial bone -internal, wedgelike, fragile
bat shape -body and wings
sphenoid sinuses
sella turcica (Turk's saddle)
wings
8
Q

Sphenoid bone wing features

A
optic foramina/canals
superior orbital fissures
foramina ovale
foramina spinosum
foramina lacerum
formaina rotundum
9
Q

ethmoid bone

A
1 -cranial bone  interanl, roof of nasal cavity
perpendicular plate
nasal conchae (superior and middle)
crista galli (cock's comb)
cribriform plate (many foramina)
ethmoid sinsuses
10
Q

facial bones

A

14

11
Q

zygomatic bones

A

2 -facial bones

temporal process

12
Q

lacrimal

A

2 -facial bones

lacrimal sulcus/groove (directs tear flow to nasal cavity)

13
Q

nasal bone

A

2 -facial bones

14
Q

vomer

A

1 -facial bones

connects to perpendicular plate of ethmoid (nasal septum)

15
Q

inferior nasal conchae

A

2 -facial bones, nasal cavity

16
Q

palatine

A

2 -facial bones

part of hard palate with palatine processes of maxillae

17
Q

maxilla

A
2 -facial bones  upper jaw, holds teeth
alveolar processes
palatine process (part of hard palate (with palatine bones))
infraorbital foramen
maxillary sinuses
18
Q

mandible

A
1 facial bone
only movable bone of skull
body, ramus, angle
mandibular condyle/condylar process (TMJ)
coronoid porcess, mandibular notch
alveolar processes
foramina: mental, mandibular
19
Q

hyoid bone

A

not attached to another bone
soft tissues/muscles attach it to styloid and mastoid processes of temporal bones
also connects to tongue and larynx

20
Q

sutures

A

immovable joines between skull bones: sagittal, coronal, lambdoidal, squamous

21
Q

cavities of skull

A

hollow spaces

22
Q

fetal skull

A

fibrous CT bt bones; gaps bt bones covered by fontanels

allows for flexibility during birth; ossify by age 2

23
Q

fontanels

A

soft spots of fetal skull

24
Q

sexual dimorphism

A

differences of shape between sexes

pelvis, skull features

25
Q

vertebral column

A
vertebrae +intervertebral discs
support system, muscle attachmen
absorbscompression, allows flexibility
protection - spinal cord, organs
4 curves; 
26 individual bones
26
Q

vertebra

A

body
vertebral foramen
vertebral arch: pedicle and lamina; intervertebral foramina
processes

27
Q

cervical vertebrae

A
C1-C7
atlas; articulates with occipital condyles
axis; dens 
vertebra prominens
transverse formaina -blood vessels
C2-C6 often have bifid spinous processes
28
Q

thoracic

A

T1-T12; articulate with (1 or 2) pairs of ribs

29
Q

lumbar

A

L1-L5