Transcript Skeletal Gross Anatomy

BIOL 2010 Human Anatomy & Physiology I
Skeletal Anatomy
Gross Anatomy
Could you name
the parts in my pile?
How many
bones are
there anyway?
What are the major categories of the skeleton?
Skeleton can be split into 2
major categories:
Includes skull, hyoid, thoracic
Includes pectoral girdle and
upper limbs & pelvic girdle
and lower limbs
What components make up the “head bone”?
Divided into 2 main
components:
3 ossicles x 2 = 6
Includes bones in contact
with brain…
_________________
The remainder of the ~22
bones of the skull
What(way)’s up with the skull anyway?
Make sure
that you
could
recognize
which view
of a skull a
given image
is…
Think of
form & function!
What are the terms pertaining to all the bumps,
ridges, nooks and crannies of the skull?
Terms related to
bones:
Kung fu move!
Take 5!!!
Which bones are most likely to
be broken with a “broken nose”?
Discuss with your
neighbor and predict
an answer.
The average adult skeleton consists of ____ bones, however
this number ____ with age. A) 206, increases B) 206,
decreases C) 260, increases D) 260, decreases
What is the primary purpose of a bone process or projection?
A) add mass to the bone B) connect one bone to another C)
points of attachment for ligaments or tendons D) create a
stress point on a bone
Of the following passages or openings in bones, which one is a
tunnel like that of the inner ear? A) foramen B) meatus C)
fissure D) sulcus
Which bone(s) of the skull would be considered to be the most
superior? A) occipital B) temporal C) maxillary D) parietal
How about the Axis of the Axial skeleton?
Vertebral column divided
into 5 regions:
___________
7
__________
12
__________
5
__________
5
__________
+
5
26 - 34 bones
Why isn’t our spinal column straight?
Primary curvatures
4 vertebral
curvatures develop
over time
Distinct functions:
redistribute the
center of gravity
Secondary curvatures
Are there any abnormal curvatures that can exist?
Malaligned:
______________
Lateral curvature
______________
Convex (anteriorly)
curvature (lumbar)
______________
Concave (anteriorly)
curvature (thoracic)
How can you tell one type of vertebrae from another?
What function
determines each form?
What are the “important” anatomic details of
vertebral structure?
Special “pieces
parts”:
How many cervical vertebrae are there?
A) 5 B) 7 C) 12 D) 15
The first cervical vertebrae is known as the
A) atlas B) axis C) lamina D) pedicle
The opening in the middle of a vertebra for the spinal cord is
known as the
A) intervertebral foramen B) vertebral meatus C) vertebral
foramen D) spinous process
Which vertebra is immediately inferior to C-7?
A) C-8. B) C-6 C) T-1 D) L-1
How many pairs of vertebrosternal ribs are there?
A) 12 B) 7 C) 5 D) 3
What are the structures involved in forming the
thoracic cage?
2 main parts:
Sternum…
____________
__________
____________
Ribs…
_____ 7 x 2 = 14
_____ 5 x 2 = 10
________
What are the components of the pectoral girdle?
Pectoral girdle…
Comprised of 2 pairs
of bones, loosely
attached:
•
•
Take 5!!!
A broken clavicle changes the
position of the upper limb in
what way?
Discuss with your
neighbor and predict
an answer.
What is the significance of each of the “parts”?
Scapula
What views?
What side?
What function?
___________
_____________
______________
What is the significance of each of the “parts”?
_____________
(shoulder to elbow)
1 bone…
____________
Which views?
Which side?
What functions?
Take 5!!!
Explain the function of the
olecranon and coronoid fossae
on the distal humerus?
Discuss with your
neighbor and predict
an answer.
How do the bones of the forearm articulate with the
humerus?
Forearm (Antebrachial)
(______________)
2 bones:
Why so many carpal bones and where is that tunnel?
Wrist (Carpal)
8 bones:
L S
T
P C TT
H
Why are the “fingers” of a skeleton so long?
Hand (Manual)
19 bones:
An elementary teacher once told
my son that, “The thumb is the
longest finger” is this true or
false? Why?
How can the pelvis consist of six different bones?
Pelvic Girdle
3 fused
bones per
Why do women have wider hips than men?
Male &
Female pelvic
differences
Which is which?
Why do women have wider hips than men?
Why are the processes/tuberosities larger on the
femur than on the humerus?
Thigh (Femoral)
1 bone:
______
Right or Left?
Anterior or
Posterior?
What two bones in the antebrachial region are
similar?
Leg (Crural)
2 bones:
If the limbs are similar thus far how about the foot?
Ankle (Tarsal)
7 bones:
If the limbs are similar thus far how about the foot?
Foot (Pedal)
19 bones: