Chapter 8: The Skeletal System Appendicular Skeleton Flashcards
Pectoral Girdle
Contains: scapula and clavicle
Clavicle
Or collar bone
Slender s shape
Lies horizontally across thorax
Scapula
Or should blade
Large triangular shaped
Flat bone
Located between levels of 2nd and 7th rib
Acromion
High point of shoulder
Stop Letting Those People Touch The Cadavers Hand
Mnemonic for carpel bones
S-scaphoid: boartlike
L-lunate: moon shaped
T-triquetrum: three cornered
P-pisiform: pea shaped
T-trapezium: four sided no parallel
T-trapezoid: four sided with parallel
C-capitate: head shaped
H-hemate: hooked
Pelvic Girdle
Two hip bones:
1. Pubic symphsis: hip bones unite at this joint
2. Bony Pelvis: deep basin like.
Ilium
Largest of 3 components of hip bone
Ischium
Posterior, Inferior portion of hip bone
Pubis
Anterior and inferior part of hip bone
Humerus
Arm bone
Longest and strongest bone of upper limb
Ulna
Medial aspect of forearm
Longer than radius
Radius
Small bone
Lateral aspect of forearm
Carpals
Proximal region of hand
Consists of 8 bones joined to one another by ligaments
Metacarpals
Palm bones i-v or 1-5
Consists of 5 bones
Phalanges
Bones of digits I-v or 1-5
14 in 5 digits hand
(Thumb contains 2 phalanges)
Pelvic Brim
Divide the pelvis into superior (false) and inferior (true) portions of pelvis.
Forms inlet to pelvic cavity
False Pelvis
Superior portion, part of lower and.
Contains: urinary bladder when full, lower intestines, uterus, ovaries, uterine (female)
True Pelvis
Inferior Portion
Is an inlet and outlet, surrounds pelvic cavity.
Contains: urinary bladder, rectum, vagina, cervix, prostate
Pelvic Inlet
Superior openings
Pelvic Outlet
Covered by muscles of pelvic floor
Pelvic Axis
Imaginary line that curves through true pelvis.
Route take by baby during birth.
Femur
Theigh bone
Longest, heaviest and strongest bone
Distal end articulates with tibia and patella
Patella
Knee Cap
Small triangular bone
Located anteriorly to the knee joint
Tibia
Shin bone
Weight bearing bone. Articulates proximal end with femur and fibula.
Lateral/medial Condyle articulates with Condyle of femur to form knee joint.
Fibula
Smaller bones.
Does not articulate with femur. Helps stabilize ankle joint.
Tarsels
Make up the Tarsus
Proximal region of foot
Contains 7 bones
Metatarsals
Intermediate region of foot
5 bones
Phalanges of Foot
Distal end of foot
5 bones
Great toe has 2 large heavy phalanges
Longitudinal Arch
2 parts
Consists of tarsels and metatarsals to form arch
Transverse arch
Found between medical and lateral aspect of foot
Greater tubercle of humerus
Lateral projection distal to neck
Palpable bony landmark of shoulder
Lesser Tubercle of Humerus
Projects anteriorly
Deltoid Tuberosity of Humerus
Middle portion of shaft, rough V shaped.
Serves as point of attachment for tendons of deltoid muscle
Trochlea of Humerus
Spool shaped surface
Articulates with trochlear notch of ulna.
Female Pelvis
Longer and more oval/rounded in shape
Male Pelvis
Heart shaped
Pubic Symphsis
Hip bones unite anteriorly at this joint.
Consists of disc of fibrocartilage.
Bony Pelvis
Deep basing like structure.
Formed by: hip bones, pubic symphysis, sacrum,coccyx
Acetabulum
Deep fossa formed by ilium, ischium and pubis.
Sockets that accepts the head of femur.
Talus
Ankle bone
Calcaneus
Heel
