Appendicular skeleton quiz
how many bones are in the appendicular skeleton?
126
3 arches of the foot
2 LONGITUDINAL ARCHES: medial and lateral 1 TRANSVERSE ARCH
Bones of pelvic girdle:
2 hip bones alone.
Hand: 8 carpal bones: arranged in ___ irregular rows of _____ bones each from the carpals (wrist)
2, 4
The Pelvic Girdle is formed by _____ COXAL BONES commonly called the ________.
2, hip bones.
tarsals: ___ bones
7
The hand has ____ carpal bones.
8
the deep socket formed from the fusion of the ilium, ischium and pubis; name means "vinegar cup". This area receives the head of the femur.
Acetabulum
is the enlarged end of the spine, connects with the clavicle at the ACROMIOCLAVICULAR JOINT
Acromoin
Radius is lateral (thumb side)
Anatomical position
The most important function of the bony pelivs is ______.
Bearing the weight of the upper body.
30 bones in the arm, forearm and hand.
Bones of the upper limbs
bears the body weight (In foot)
Calcaneus and talus
(collarbone); slender, doubly curved bone. Attaches to the manubrium (top of the sternum called the clavicular notch) and the scapula (at the acromion)to form the shoulder joint. It acts as a brace to hold the arm away and prevent shoulder dislocation.
Clavicle
points over the top of the shoulder and anchors some of the muscles of the arm
Coracoid process
Point of deltoid attachment
Deltoid tuberosity
CORONOID FOSSA (anterior) and OLECRANON FOSSA (posterior) work with MEDIAL & LATERAL
Depressions
allows ulna to move freely when elbow is bent or extended.
Epicondyles
Female vs male pelvis: -Inlet is larger and more circular -Shallower and bones are lighter and thinner -Ilia flare more laterally -Sacrum is shorter and less curved -Outlet is larger -Pubic arch is more rounded because the angle of the pubic arch is greater.
Female pelvis
receives the humerus
Glenoid cavity
allows blood vessels and sciatic nerve to pass
Greater sciatic notch
upper edge; this ends anteriorly in the ANTERIOR SUPERIOR ILIAC SPINE and posteriorly at the POSTERIOR SUPERIOR ILIAC SPINE
Iliac crest
connects posteriorly with the sacrum at the SACROILIAC JOINT. It is a large flaring bone that forms most of your hip bone.
Ilium
Each hip bone is formed by the fusion of 3 bones:
Ilium, Ischium, and Pubis.
separates posteriorly the condyles.
Intercondylar fossa
superior to the tuberosity
Ischial spine
roughened area that receives body weight when you are sitting
Ischial tuberosity
"the sit-down bone"
Ischium
Fusions of the pubis anteriorly and the ischium posteriorly forms a bar of bone enclosing the _______.
Obturator foramen
allows blood vessels and nerves to pass into the thigh.
Obturator foramen
distal end of the femur; forms a joint with the patella
Patellar surface
the fusion of pubic bones of each hip bones anteriorly at a cartilaginous joint
Pubic symphysis
most anterior part of coxal bone
Pubis (pubic bone)
Below the disc-shaped head of radius; where biceps muscles attach.
Radial tuberosity
both the proximal and distal ends where radius and ulna meet. Both bones are connected by INTEROSSEOUS MEMBRANE
Radioulnar joints
The bony pelvis protects _____, _____, & _____.
Reproductive organs, bladder, and part of large intestine.
The _____ and ______ form the bony pelvis.
Sacrum and coccyx
"shoulder blades", commonly called "wings".
Scapula
Found at distal end of both bones
Styloid process
Articulate with forearm bones.
Trochlea and Capitulum
in anatomical position it is the medial bone
Ulna
HUMERUS; proximal end fits into glenoid cavity; GREATER and LESSER tubercle are sites of muscle attachment
arm
Carry our total body weight when we are erect. These bones are THICKER and STRONGER than those of the upper limbs.
bones of the lower limb
What two bones make up the pectoral girdle?
clavicle and scapula
(aka flat feet): weak arches
fallen arches
superior to the true pelvis; area medial to the flaring portions of the ilia
false pelvis
The femur slants medially as it runs downward. This brings the knees in line with the body's center of gravity. This is more noticeable in _______, as they have a wider pelvis.
females
proximal end has a ball-like head that articulates with the acetabulum of the hip
femur
thin and stick-like; has NO part in forming the knee joint
fibula
tarsals, metatarsals and phalanges; 2 functions: supports our body weight and serves as a lever that propels our bodies forward
foot
forms the outer part of the ankle
lateral malleolus
INTEROSSEOUS MEMBRANE: connects the tibia and fibula
leg
Carpals are bound together by ____.
ligaments
The appendicular skeleton consists of...
limbs, pectoral girdle, pelvic girdle
distally located, forms the inner bulge of the ankle
medial malleolus
palm of the hand (heads of metacarpals are the knuckles) #'s 1-5, with the thumb #1
metacarpals
5; form the sole of the foot
metatarsals
INTERTROCHANTERIC LINE (anterior), INTERTROCHANTERIC CREST (posterior),GLUTEAL TUBEROSITY: located in the shaft. All of the following serve as sites for _________.
muscle attachment.
common fracture site especially in old age
neck
14; forms the toes (big toe only has 2, while all other toes have distal, middle and proximal)
phalanges
bones of the fingers; divided into distal, middle and proximal; the thumb only has 2, therefore is only proximal and distal
phalanges
Marks the course of the radial nerve
radial groove
forearm: 2 bones:
radius and ulna
serves as a nerve passageway
suprascapular notch
thigh bone; this is the only bone in the thigh; heaviest, strongest bone in the body
thigh: femur
Distally, the LATERAL and MEDIAL CONDYLES articulate with the ________ below.
tibia
shinbone; larger and more medial; proximal end: MEDIAL and LATERAL CONDYLES separated by the INTERCONDYLAR EMINENCE; articulate with the femur to form the knee joint
tibia
a roughened area on the anterior tibial surface that allows the tendon to attach that connects to the patella
tibial tuberosity
lies inferior to the flaring parts
true pelvis