BPK 142 Study Guide - Midterm Guide: Shoulder Girdle, Sesamoid Bone, Axial Skeleton
27 Apr 2018
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Week #1: Osteology and Torso Model Anatomy
1. Describe the functions of the patella. How is the patella different from other bones
of the leg?
- Knee extension, protects knee joint, maintains position of tendon during knee flexion
- Flat sesamoid bone that is used for protection rather than support (covers tendon and
aids in motion)
2. Name the bones of the pectoral girdle and the bones of the pelvic girdle. Compare
the pectoral and pelvic girdles with regard to strength, function, and versatility.
Sockets for joint articulation
Pectoral girdle: scapula, clavicle. Connects upper limbs to axial skeleton. Permits
movements of upper limbs.
Pelvic girdle: ilium, ischium, pelvis. Less mobile. Bears weight. Used for stability. Connects
trunks and legs, supports and balances trunk. Supports intestines, urinary bladder +
internal sex organs.
3. What functions does the clavicle serve in the skeletal system?
- Transfers force from upper limbs to axial skeleton
- Place of attachment for tendons
- Protects neuromuscular structures
- Supports scapula and upper arm
- Keeps arms away from thorax to allow for max movement of arm
- Allows scapula to move on thoracic wall
4. To which bones does the scapula articulate?
Humerus, clavicle
5. Describe the bony arrangements which are involved in the elbow joint.
Humerus, radius, ulna
Elbow joint: flexion, extension.
Humeroulnar joint: humerus + ulna. hinge-joint, which allows for movements of flexion,
extension
Humeroradial joint: Ball-and-socket joint flexion
Radioulnar joint: supination, pronation
6. Describe the differences between a male pelvis and a female pelvis.
Female: wider opening, oval shaped opening. Lighter, thinner bones.
Male: heart shaped opening
Document Summary
Week #1: osteology and torso model anatomy: describe the functions of the patella. Knee extension, protects knee joint, maintains position of tendon during knee flexion. Flat sesamoid bone that is used for protection rather than support (covers tendon and aids in motion: name the bones of the pectoral girdle and the bones of the pelvic girdle. Compare the pectoral and pelvic girdles with regard to strength, function, and versatility. Connects trunks and legs, supports and balances trunk. Supports intestines, urinary bladder + internal sex organs. Keeps arms away from thorax to allow for max movement of arm. Humerus, clavicle: describe the bony arrangements which are involved in the elbow joint. Humeroulnar joint: humerus + ulna. hinge-joint, which allows for movements of flexion, extension. Radioulnar joint: supination, pronation: describe the differences between a male pelvis and a female pelvis. Male: heart shaped opening: describe the four major curvatures of the vertebral column.
