Mods6 Flashcards
What are the two divisions of Skeleton?
Axial skeleton
Appendicular skeleton
Bones of the center or axis of the body make up the __________. The bones of the skull, spine, and chest and the hyoid bone in the neck are all in the axial skeleton.
Axial skeleton
The bone of the upper and lower extremities appendages make up the __________.
Appendicular skeleton
_______ consists of the bones of the upper extremities(shoulder, pectoral girdles, arms, wrists, and hands) and the lower extremities (hip, pelvic girdles, legs, ankles, and feet)
Appendicular skeleton
What are the parts of axial skeleton? narrate its subparts as well.
Skull
-Cranial bones
-ear bones
-face bones
Spine
-Vertebrae
Thorax
- Ribs
-Sternum
Hyoid bone
How many bones are there in the skull?
8 bones
8 bones in the skull form the?
cranium
How many bones are there in the face?
14 bones
What are the parts of lower extremities? (4)
Pelvic (hip) girdle
Thigh and leg bones
Ankle bones
Foot bones
How many bones are there?
206 bones
The ____ of the skull provide protection for the brain and the organs of visions, taste, hearing, equilibrium, and smell
bones
The __________________________ consists of a series of separate bones , or vertebrae, connected in such a way that they form a flexible curved rod.
Vertebral vertebrae
What are the different sections of the spine? (5)
cervical regions
thoracic region
lumbar region
sacrum
coccyx
It provides support for the head and trunk of the body, protection for the spinal cord and connection points for the ribs and muscles
Spine (vertebral column)
Twelve pairs of ribs, the sternum(breastbone), and thoracic vertebrae(thorax)
Thorax
Parts of thorax(3)
Twelve pairs of ribs, the sternum(breastbone), and thoracic vertebrae(thorax)
Each of the 12 pairs of ribs is attached ______ to a _______.
posteriorly to a vertebra
Are all of the ribs except the lower two pairs attached to the sternum?
True
First seven pairs of the ribs
true ribs
8th, 9th, and 10th pairs of ribs are attached to the cartilage
false ribs
the last two pairs of ribs
floating ribs
Located in the neck, ______________________ is isolated from all other bones
HYOID BONE
It is connected by ligaments to the styloid processes of the temporal bones
HYOID BONE
Muscles from the tongue, neck, pharynx, and larynx that attach to the hyoid bone contributes to the movements involved in ____ and _____.
swallowing and speech
The clavicle articulare with the?(2) S S
sternum and scapila
In turn, the scapular articulates with the ____ of the arm
humerus
From bulging topsides of the cranium
#
Parietal
2
From lower sides of cranium, contain middle and inner ear structures; mastoid sinues…..
temporal
2
forms back of the skull
#
occipital
1
…. floor of cranium
ethmoid
1
upper jawbones; also help form roof of mouth, floor, and side walls of nose and floor of orbit
maxilla
2
cheek bones
zygomatic
2
Lower jawbone articulates with temporal bone at condyloid process
mandible
1
small bones; help form medial wall of eyesocket and side wall of nasal cavity
lacrimal
2
form back part of roof of mouth ….
palatine
2
form curved ledge along inside of side wall of nose….
inferior nasal concha
2
malleus, incus, and stapes are tiny bones
it means hammer
malleus
2
incus means anvil- shape of bone
incus
2
stapes means stirrup- shape of bone
stapes
in child, five separate vertebrae; in adult, fused into one
sacrum
1
true ribs #
14
sternum #
1
is in superoanterior thorax
clavicle
is in posterior thorax
scapula
is in superoanterior thorax
clavicle
2
is the medial bone of forearm between elbow and wrist
ulna
2
Forehead bone, also forms front part of floor of cranium and most of upper part of eye sockets; cavity inside bone above upper margins of eye sockets(orbits) called frontal sinus; lined with mucous membrane
How many is it? (number)
Frontal
is the lateral bone of forearm
radius
2
Appendicular skeleton– upper extremities(2)
pECTORAL (SHOULDER) GIRDLE
form a bony crescent at the wrist
carpals
8 or 16
form the palm; one in line with each digit
carpals
form the palm; one in line with each digit
metacarpals
How many total bones are there in the axial skeleton?
80 bones
How many bones are there in the middle ear?
6 tiny bones
From lower sides of cranium, contain middle and inner ear structures; mastoid sinues…..
temporal
2
How many total bones are there in the appendicular skeleton?
126 bones
What are the two parts of appendicular skeleton?
Upper extremities
Lower extremities
The upper limb consists of the_______________ (3)
arm
forearm
hand
two pectoral (shoulder) girdles consists of two bones
S-shaped clavicle
flat
triangular scapula
form the palm; one in line with each digit
metacarpals
is the sole bone of the arm
humerus
form the finers; three in digits II-V
Phalanges
14 or 28
Form a bony crescent at the wrist arranged in two rows of four bones each
carpals
Transfer the weight of the upper body to the legs
pelvic(hip girdle)
it consists of a pair of coxal bones (os coxae hip bones)
pelvic(hip) girdle
what are the three fused bones in pelvic (hip) girdle?
Ilium, ischium, and pubis
The thigh, leg, and foot is the ….
lower limb
fusion of the ischium and pubis?
coxal
sesamoid bone formed within the quadriceps muscles
patella
_ are tiny bones of the middle ear cavity in temporal bone?
malleus, incus, stapes
