Human Anatomy Quiz 8: Appendicular Skeleton

protection of internal organs

What is the axial skeleton's main function?

movement

What is the function of the appendicular skeleton?

206

In total, how many bones are there in the human body?

pectoral girdle, upper limb, pelvic girdle, lower limb

The appendicular skeleton consists of four components:

shoulder

The pectoral girdle is also known as the:

clavicle, scapula

The pectoral girdle is made up of two components:

humerus, ulna, radius, carpals, metacarpals, phalanges

The upper limb is made up of six components:

coxal bones, innominate bones

The pelvic girdle is made up of two components:

femur, patella, fibula, tibia, tarsals, metatarsals, phalanges

The lower limb is made up of seven components:

attaches upper limb to axial skeleton

What does the pectoral girdle/shoulder do?

S

What shape is the clavicle?

manubrium, acromion of scapula

What does the clavicle articulate with?

yes

Is the clavicle frequently fractured?

triangular, flat

What shape is the scapula? What type of bone is it?

spines, projections, fossae

What three things is the scapula composed of?

attachment points for muscles and ligaments of the shoulder

What do the components of the scapula (spines, projections, fossae) serve as?

30

How many bones does the upper limb consist of?

humerus, ulna, radius, 8 carpals, 5 metacarpals, 14 phalanges

What are the bones of the upper limb?

forearm

What are the ulna and radius also known as?

wrist

What are the carpals also known as?

palm

What are the metacarpals also known as?

fingers

What are the phalanges also known as?

proximal end

What end of the humerus articulates with the glenoid cavity of the scapula?

glenoid cavity of scapula

What does the proximal end of the humerus articulate with?

distal end

What end of the humerus articulates with radius and ulna?

radius and ulna

What does the distal end of the humerus articulate with?

medial side of forearm

The ulna is located on what side of the forearm?

lateral side of forearm

The radius is located on what side of the forearm?

humerus, distal

What do the radius and ulna both articulate with? On what end of the bone?

pronation

What is 1 pointing to?

supination

What is 2 pointing to?

8 small bones joined to each other by ligaments lined up in two rows

What are the carpals?

their shapes

What are the names of the carpals based on?

form palm and fingers

Metacarpals and phalanges:

2 hip (coxal) bones

What does the pelvic (hip) girdle consist of?

pubic symphysis

What do the 2 hip (coxal) bones of the pelvic girdle join anteriorly at?

sacrum

What do the 2 hip (coxal) bones of the pelvic girdle join posteriorly at?

bony pelvis

What is the complete ring of the pelvic girdle called?

a bony ring, 2 innominate bones, sacrum, and coccyx

What is the pelvis and what is it formed by?

fuse

Each innominate bone does what early in life?

3

How many innominate bones are there?

ilium, ischium, pubis

What are the bones that compose the innominate bone?

ligaments

What is the sacrum joined to the ilium with in the sacroiliac joint?

femur articulates with innominate

What bone articulates with what bone at the hip joint?

deep acetabulum

What does the head of the femur fit into in the hip joint?

a fibrocartilage lip, labrum

What does the deep acetabulum have? What is it called?

capsule

What encloses the hip joint?

ligaments and bones

What makes the hip joint one of the strongest articulations?

ball and socket

What type of joint is the hip joint?

30

How many bones is the lower limb composed of?

femur, patella, tibia, fibula, 7 tarsals, 5 metatarsals, 14 phalanges

What are the bones of the lower limb?

femur

What is the longest, strongest bone in the body?

acetabulum, tibia, patella

The femur articulates with which bones?

sesamoid

What type of bones is the patella?

increase leverage of thigh musculature, protect knee joint

What does the patella do?

quadriceps femoris

What is thigh musculature also known as?

bursae, synovial fluid

What does the knee joint have? What are these filled with?

decrease friction

What does the synovial fluid in the bursae do?

between patella and skin

The prepatellar bursa is located:

between superior end of tibia and patellar ligament

The infrapatellar bursa is located:

between inferior part of femur, quadriceps, and myo

The suprapatellar bursa is located:

femur, fibula

The tibia articulates with which bones on the proximal end?

fibula, talus

The tibia articulates with which bones on the distal end?

lateral side

The fibula is located on which side of the leg?

lateral malleolus

The distal end of the fibula forms the:

ankle joint and part of foot

What do the tarsals form?

metatarsals, phalanges

What makes up the forefoot?