This section is important because most practicing medical personnel seldom explore tissues to any depth beneath the skin.
The peri- osteum receives a rich nerve supply and is very sensitive.
It accelerates the heart rate, causes constriction of the peripheral blood cervical nerves (8 pairs) thoracic nerves (12 pairs) lumbar nerves (5 pairs) sacral nerves (5 pairs) coccygeal nerves (1 pair) atlas (first cervical vertebra) cervical plexus spinal cord first thoracic vertebra brachial plexus intercostal.Central Nervous System The central nervous system is composed of large numbers of nerve cells and their processes, supported by specialized tissue called neuroglia.The anterior root consists of bundles of nerve fibers carrying nerve impulses away from the central nerv- ous system (Fig.For example, the quadriceps femoris is a prime mover in the movement of extending the knee joint (Fig.Antagonist: Any muscle that opposes the action of the prime mover is an antagonist.In the region of joints, the deep fascia may be consid- erably thickened to form restraining bands called retinacula (Fig. .The smaller veins, or tributaries, unite to form larger veins, which commonly join with speed up my pc 2011 with serial one another to form venous plexuses.The visceral layer is developed from the splanchnopleure (inner cell layer of mes- oderm) and is supplied by autonomic nerves.The narrow, slitlike interval that separates these layers forms the pleural, pericardial, and peritoneal cavities and contains a small amount of serous liquid, the serousexu- date.Asic Anatomy 2 Descriptive Anatomic Terms 2 Terms Related to Position 2 Terms Related to Movement 3 Basic Structures 3 Skin 3 Fasciae 7 Muscle 7 Joints 11 Ligaments 15 Bursae 15 Synovial Sheath 15 Blood Vessels 16 Lymphatic System 18 Nervous System 20 Mucous.Multipolar motor neuron with connector neuron synapsing with.For example, the flexor and extensor muscles of the carpus contract to fix the wrist joint, and this allows the long flexor and the extensor muscles of the fingers to work efficiently (see Fig.The terms proximal and distal describe the relative distances from the roots of the limbs; for example, the arm is proximal to the forearm and the hand is distal to the forearm.
In certain circumstances, the full-thickness graft is made in the form of a pedicle graft, in which a flap of full-thickness skin is turned and stitched in position at the recipient site, leaving the base of the flap with its blood supply intact at the.
The two trunks lie close to the vertebral column and end below by joining together to form a single ganglion, the ganglion impar.They are situated on the sloping undersur- face of the follicles downton abbey season 4 episode 2 and lie within the dermis (see Fig.Lippincott Williams Wilkins customer service representatives are available from 8:30 am to 6:00 pm, EST.In certain situationsfor example, the iliumfractures result in no deformity because the inner and outer surfaces of the bone are splinted by the extensive origins of muscles.Examples of muscles with parallel fiber arrangements (see Fig.1.10) are the ster- nocleidomastoid, the rectus abdominis, and the sartorius.Dendrites are the short processes of the cell body; the axon is the longest process of the cell body (Fig.Most figures have been kept simple, and color has been used extensively.
The central axons then enter the central nervous system and take part in the formation of local reflex arcs or pass to higher centers of the autonomic nervous system.
In the neck, it forms well-defined layers that may play an important role in determining the path taken by pathogenic organisms during the spread of infection.