Week 07 Objective Assignment
Chapter 7: The Skeleton
Name the major parts of the axial and appendicular skeletons and describe their relative
forms the longitudinal axis of the body, supports the head, neck, and
trunk, and protects the brain, spinal cord, and the organs of the thorax.
formed by cranial and facial bones, encloses and protects the brain,
provide attachment sites for muscles of the head and neck.
formed by 26 irregular bones in a flexible, curved structure
that provides axial support for the trunk, surrounds and protects the spinal
cord, and provides attachment points for the ribs and muscles of back and
the bony underpinning of the chest comprised of the sternum,
ribs, and costal cartilage; forms a protective cage around the vital organs of the
thoracic cavity (heart, lungs, and great blood vessels), provides support for the
pectoral girdle and upper limbs, provides attachment points for multiple
muscles of the neck, back, chest, and shoulders.
formed by the limbs and their girdles; allow interaction and
manipulation of environment.
consists of the clavicle and scapula; attaches the upper limbs
to the axial skeleton and provides attachment points for multiple muscles that
move the upper limbs.
consists of 30 separate bones (left and right respectively) and is
comprised of the arm, forearm, and hand.
attaches the lower limbs to the axial skeleton, transmits the full
weight of the upper body to the lower limbs, and supports the visceral organs
of the pelvis; secured to the axial skeleton by strongest ligaments of the body;
comprised of the bony pelvis, ilium, ischium, and pubis bones.
carry entire weight of the erect body and contain three
the thigh, the leg, and the foot.
Name, describe, and identify the skull bones. Identify their important markings.
Description - resembles a cockleshell in form, and consists of two
portions: a vertical portion, the squama frontalis, corresponding with
the region of the forehead and an orbital or horizontal portion, the pars
orbitalis, which enters into the formation of the roofs of the orbital and
Important markings - Frontal or coronal suture; supraorbital foramina
the sides and roof of the cranium. Each bone is
irregularly quadrilateral in form, and has two surfaces, four borders,
and four angles.
Important markings - Sagittal suture