Chapter 8 - Skeletal System (B) - Appendicular Skeleton Flashcards Preview

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Flashcards in Chapter 8 - Skeletal System (B) - Appendicular Skeleton Deck (25):
1

126 bones of the appendicular skeleton are involved with _____________.

movement

2

What are girdles and where are they located?

support limbs
-pectoral girdle
-pelvic girdle

3

the pectoral girdle is composed of what structures?

left and right scapulae and clavicles

4

the pelvic girdle is composed of what structures?

left and right ossa coxae

5

the upper limb is divided into what 4 areas?

shoulder --> area of upper limb attachment to the trunk
arm--> upper limb btw shoulder and elbow joint
forearm --> btw the elbow and wrist
hand --> distal to the wrist

6

the sternal end of the clavicle articulates with ....

manubrium of sternum

7

the lacrimal end of the clavicle articulates with....

acromion

8

what is the only bone in the arm of the upper limb?

humerous

9

what bones are located in the forearm of the upper limb?

radius and ulna

10

the hand is composed of what 3 main components

carpals - 8 per hand (wrist)
metacarpals - 5 per hand (palm)
phalanges - 14 per hand (fingers)
-proximal, middle, and distal plalanx's

11

what 4 regions is the lower limb divided into?

gluteal region --> btw iliac crest and hip joint
thigh --> btw hip and knee joint
leg -->btw knee and ankle
foot --> distal to the ankle

12

what are the components of the pelvic girdle?

located in gluteal region.
- made up of 2 os coax (ilium, ischium, pubis)

13

what joins the pelvic girdle halves together?

pubic symphysis and sacrum

14

the ilium of the pelvic girdle forms the ______.

acetabulum (socket of the head of the femur)

15

the most prominent feature of the ischium is the....

ischial tuberosity (sitting bones)

16

what is the pubis?

the anterior and inferior part of the hip bone

17

where is the false pelvis located? and what does it contain?

lies above the pelvic brim
contains urinary bladder, lower intestine, uterus and ovaries

18

where is the true pelvis located? what does it contain?

below pelvic brim
- contain the rectum, expanded urinary bladder, vagina, cervix, prostate

19

Explain the difference between the male and female pelvises.

male: larger and heavier bones, smaller inlet, subpubic angle is 90 degrees

20

the longest, heaviest and strongest bone is...

the femur

21

what joins the tibia and fibia?

interosseous membrane

22

what do the distal ends of the leg bones form?

medial and lateral malleoli of the ankle

23

what are the bones of the foot?

-Tarsals (7 per foot) - ankle
-calcaneus = heel
-Metatarsals (5 per foot) - sole
-Phalanges (14 per foot) - toes --> proximal, middle, and distal phalanx

24

what are the two arches of the foot?

transverse arch
longitudinal arch

25

what is the purpose of foot arches?

support the weight of the body
provides spring to step
leverage