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Exercise 11: The Appendicular Skeleton


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# Front Side Back Side
1
deltoid tuberosity
raised area on lateral surface of humerus to which deltoid muscle attaches
2
humerus
arm bone
3
scapula, clavicle
bones of the shoulder girdle
4
radius, ulna
forearm bones
5
acromion
scapular region to which the clavicle connects
6
scapula
shoulder girdle bone that is unattached to the axial skeleton
7
clavicle
shoulder girdle bone that articulates with and transmits forces to the bony thorax
8
glenoid cavity
depression in the scapula that articulates with the humerous
9
coracoid process
process above the glenoid cavity that permits muscle attachment
10
clavicle
the "collarbone"
11
trochlea
distal condyle of the humerus that articulates with the ulna
12
ulna
medial bone of forearm in anatomical position
13
capitulium
rounded knob on the humerus; adjoins the radius
14
coronoid fossa
anteriar depression, superior to the trochlea, which receives part of the ulna when the forearm is flexed
15
ulna
forearm bone involved in formation of the elbow joint
16
carpals
wrist bones
17
phalanges
finger bones
18
metacarpals
heads of these bones form the knuckles
19
scapula, sternum
bones that articulate with the clavicle
20
How is the arm held clear of the widest dimension of the thoracic cage?
Clavicle serves as an anterior base or strut to hold the arm away from the top of the thorax
21
What is the total number of phalanges in the hand?
14
22
What is the total number of carpals in the wrist?
8
23
Name the carpals (medial to lateral) in the proximal row.
pisiform-triquetral-lunate-scaphoid
24
In the distal row, they are (medial to lateral)
trapezium-trapezoid-capitate-hamate
25
26
27
28
29
30
31
The humerus is a (right/left) bone in (an anterior/a posterior) view.
right; Posterior
32
The radius and ulna are (right/left) bones in (an anterior/a posterior) view.
left; Anterior
33
Pectoral
flexibility most important; lightweight; insecure axaial and limb attachments
34
Pelvic
massive; secure axail and limb attachments; weight-bearing most important
35
What organs are protected, at least in part, by the pelvic girdle?
Uterus, bladdar, rectum, small intestine, and reproductive organs
36
What is the difference between the true pelvis and the false pelvis?
The true pelvis is small bowl-like shape containing the unrinary bladder and sexual organs. The false pelvis is the area been the alla or wings of the pelvis. This is a much larger area and contains some of the abdominal organs like part of the small intestine and part of the colon.
37

This is a (female/male) pelvis because?

Female; It is adapted for childbearing, defines birth canal, Farther apart then a males, the sacrum is wider, shorter and less curved then a males. The pelvic inlet (brim) is wider; oval from side to side.
38
Deduce why the pelvis bones of a four-legged animal such as a cat or pig are less massive than those of the human.
The pelvic bones of a two-legged animal such as a human have to carry his whole weight, divided by two. A four-legged animal such as a pig divides its weight over four legs, so each leg and each pelvic bone has to bear only a fourth of the animal's weight. As the strain on the bones is a half than in the two-legged case, the bones can be less massive.
39
A person instinctively curls over his abdominal area in times of danger. Why?
To prevent a smaller target and also to protect the internal organs and genitalia.
40
For what anatomical reason do many women appear to be slightly knock-kneed?
Biologically, women have wider pelvises than men. The angle of their hips turn the legs slightly inward, making some to actually touch at the knees.
41
How might this anatomical arrangement contribute to knee injuries in female athletes?
they can be more prone to knee related injuries, such as ACL tears due to high intensity straight knee landing or impact since the knee is already in a weak position.
42
What does fallen arches mean?
It mean flat feet or flat footed
43
illium, ischium, pubis
fuse to form the coxal bone
44
ischium
"sit-down" bone of the coxal bone
45
pubic symphysis
point where the coxal bones join anteriorly
46
iliac crest
superiormost margin of the coxal bone
47
acetabulum
deep socket in the coxal bone that receives the head of the thigh bone
48
sacroiliac joint
joint between axaial skeleton and pelvic girdle
49
femur
longest, strongest bone in the body
50
fibula
thin lateral leg bone
51
tibia
heavy medial leg bone
52
femur, tibia, patella
bones forming knee joint
53
tibial tuberosity
point where the patellar ligament attaches
54
patella
kneecap
55
tibia
shinbone
56
medial malleolus
medial ankle projection
57
lateral malleolus
lateral ankle projection
58
calcaneus
largest tarsal bone
59
tarsals
ankle bones
60
metatarsals
bones forming the instep of the foot
61
obturator foramen
opening in hip bone formed by the pubic and ischial rami
62
gluteal tuberosity, greater and lesser trochanters
sites of muscle attachment on the proximal femur
63
talus
tarsal bone that "sits" on the calcaneus
64
tibia
weight-bearing bone of the leg
65
talus
tarsal bone that articulates with the tibia
66
67
68
69
70
The femur is a (right/left) bone in (an anterior/a posterior) view.
right; posterior
71
The tibia and fibula are (right/left) bones in (an anterior/a posterior) view.
right; anterior
72
73
74
75

Comments (5)

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Canada90 9 months ago

#74 Pelvic (Hip) should be Ilium. The missing label is Ischium. (The fused coxal bones: ilium, ischium and pubis/pubic bone.)

Canada90 9 months ago

#37 ischial spine and pelvic brim should be reversed.

amberhubbard 10 months ago

I agree, 37 is male. Compared to the female the cavity of the true pelvis is narrow and deep. the Pubic arch is more acute, sacrum is narrower,longer, and sacral is more ventral. Acetabula is larger and closer. (There is more, but these stand out the most.)

jsmonreal 1 year ago

37 is a male pelvis.

jillebutter 1 year ago

I believe for # 74 the missing term is actually "pubic bone" and the term labeled pubic bone may be "pubic symphysis"

Helpfulness:17

 

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pg. 157 - pg. 163

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Human Anatomy & Physiology

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2 years agoby jncanf

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2 years agoby jncanf

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