A&P Chapter 8 The Appendicular Skeletal system

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The pelvic (hip) girdle consists of the two hip bones, also called

coxal, or os coxa

the skeleton of the skull arises from

ectoderm

Another name for your shoulder joint is the _____________ joint.

glenohumeral

The proximal end of the humerus features a rounded head that articulates with the glenoid cavity of the scapula to form the ___________ -.

glenohumeral (shoulder) joint

Lateral to your umbilicus, the projection you can palpate from the surface that people usually call your "hip bone" is actually what

iliac crest

When you are sitting your weight is resting on the

ischial tuberosities

The projection on the lateral surface of your ankle is formed by which structure

lateral malleolus of the fibula

Male pubic arch is _______ than 90 degrees

less

The _____________ is a small bone located anterior to the knee joint.

patella

The projection on the posterior-medial aspect of your wrist is formed by the

styloid process of the ulna

The skull begins development during

the fourth week after fertilization

Which leg bone bears the weight of the body

the tibia

The sharp line along the anterior surface of your lower leg (your shin) is formed by the anterior crest of the ________

tibia

Another name for the knee joint is the __________ joint.

tibiofemoral

The roughened section on the humerus where the deltoid muscle attaches is called the deltoid ________

tuberosity

The pectoral girdles do not articulate with the ________and are held in position and stabilized by a group of large muscles that extend from the vertebral column and _____ to the _________.

vertebral column, ribs, scapula

Which of the three basic embryonic tissues—ectoderm, mesoderm, and endoderm—gives rise to most of the skeletal system?

Most of the skeletal system arises from embryonic mesoderm.

The head of the femur fits into the ____________, a depression or socket in the hip bone.

acetabulum

The scapula articulates with the clavicle at the

acromioclavicular joint

When you palpate your shoulder, the highest point you feel is the _________ process.

acromion

Your "heel" bone is the

calcaneus

At the elbow joint, the radius articulates (connects) with the

capitulum of the humerus

Which bones make up the pectoral girdle

clavicle and scapula

How many total phalanges are in the body

56

The ______ is a fossa formed by the ilium, ischium and pubis which with the femoral head forms the _______ joint.

Acetabulum; coxal

lists the bones forming the lower limb from proximal to distal

Femur, patella, tibia and fibula, tarsals, metatarsals, phalanges

lists the bones of the upper limb from proximal to distal

Humerus, ulna and radius, carpals, metacarpals, phalanges

Examples of Tarsals

Talus, calcaneus, navicular

What are the functions of the bony pelvis

The bony pelvis attaches the lower limbs to the axial skeleton and supports the backbone and pelvic viscera.

Which part of the hip bone articulates with the femur? with the sacrum

The femur articulates with the acetabulum of the hip bone; the sacrum articulates with the auricular surface of the hip bone.

What is the function of the pectoral girdle?

The pectoral girdles attach the upper limbs to the axial skeleton.

what bones form the bony pelvis

The pubic symphysis, the os coxae, and sacrum

T/F The measurements false and true pelves would be important to a pregnant female since the fetus must pass through the openings during birth.

True

The female's pelvis is wider and shallower than the males in order to accommodate the passage of the infant's head at birth

True

The longitudinal and transverse arches of the foot function to provide support and leverage.

True

Most skeletal tissue arises from

mesenchymal cells, connective tissue cells derived from mesoderm


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