HA&P Lab Exercise 10

Appendicular Skeleton

How many bones are composed within the appendicular skeleton of its appendages and the pectoral and pelvic girdles which attach the limbs to the axial skeleton?

126 bones

These each consist of two bones of the anterior clavicle and the posterior scapula?

Pectoral, or Shoulder girdles

What kind of joints are the only site of attachment of the shoulder girdles to the axial skeleton?

Sternoclavicular joints

What does the arm, or brachium consists that is a single bone, which its rounded head fits into the shallow glenoid cavity of the scapula?

Humerus

What two bones compose the skeleton of the forearm, antebrachium whereas in the anatomical position a. is lateral & b. is medial , that makes them parallel?

a. Radius

b. Ulna

The wrist of the hand is the proximal portion, as it can be referred to anatomically as a. what, which are the eight bones composing it are b. called what?

a. Carpus

b. Carpals

In the proximal row of the carpals what is it from lateral to medial?

Scaphoid, Lunate, Triquetrum, Pisiform Bones

In the distal row of the carpals what is it lateral to medial?

Trapezium, Trapezoid, Capitate, Hamate

These are numbered I to V from the thumb side of the hand toward the little finger, that radiate out from the wrist like spokes to form the palm of the hand?

Metacarpals

What can the 14 bones of the fingers, or digits be called that are miniature long bones?

Phalanges

What bone is formed by the two hip bones, (that can also be called ossa coxae) and the sacrum?

Pelvic girdle, or Hip girdle

What is the deep structure formed by the hip bones, sacrum, and coccyx?

Pelvis

What do each hip bone is a result of the fusion of three bones that are distinguishable in a young child?

Ilium, Ischium, & Pubis

What do the ilium, ischium, pubis fuse at the deep socket to what it can be called, which it receives the head of the thigh bone?

Acetabalum

What does the rami of the pubis and ischium form this a bar of a bone enclosing, through which a few blood vessels and nerves pass?

Obturator foramen

This is a continuous oval ridge of bone that runs along the pubic symphysis, pubic crests, arcuate line, sacral alae, and sacral promontory?

Pelvic brim

This is a portion superior to the pelvic brim and it is bounded by the alae of the ilia laterally and the sacral promontory and lumbar vertebrae posteriorly and it supports the abdominal viscera?

False pelvis

What is the region inferior to the pelvic brim that is almost entirely surrounded by bone and its posterior boundary is formed by the sacrum?

True pelvis

This is the opening delineated by the pelvic brim and the widest dimension is from left to right?

Pelvic inlet

This is the inferior margin of the true pelvis and it is bounded anteriorly by the pubic arch, laterally by the ischia, and posteriorly by the sacrum and coccyx?

Pelvic outlet

This can be called a thigh bone, is the only bone of the thigh, is the heaviest, strongest bone in the body, and the ball-like head of the bone articulates with the hip bone via the deep, secure socket of the acetabulum?

Femur

This can be called a kneecap, and is a triangular sesamoid bone enclosed in the quadriceps tendon that secures the anterior thigh muscles to the tibia?

Patella

What are the two bones that form the skeleton of the leg where a. is the shinbone and is the larger, medial, weight-bearing bone of the leg and b. which it lies parallel to the tibia, that takes no part in forming the knee joint?

a. Tibia

b. Fibula

The bones of the foot include

a. 7 ______ bones

b. 5 ___________, that inform the instep

c. 14 __________ which form the toes

a. Tarsal

b. Metatarsals

c. Phalanges

Weakened tendons and ligaments supporting the arches can be referred to what?

Fallen arches or flat feet