Overview and Basic Concepts Flashcards
Based on the organization of the body into parts: head, neck, trunk and paired upper and lower extremities
Regional Anatomy
Approach to anatomical study organized by organ systems that work together to carry out complex functions
Systemic Anatomy
Consists of the skin and its appendages such as the hair and nails
Integumentary system (Dermatology)
Consists of bones and cartilage. Provides support for the body and protects vital organs
Skeletal System (osteology, orthopedics)
Consists of joints and their associated ligaments. Sites at which movements occur
Articular System (arthrology)
Consists of muscles that act to move or position parts of the body.
Muscular System (Myology)
Consists of the central and peripheral nerves
Nervous System (Neurology)
Consists of the cardiovascular and lymphatic systems which function in parallel to distribute fluids within the body
Circulatory System (Angiology)
Consists of the heart and blood vessels that propel and conduct blood through the body
Cardiovascular System (Cardiology)
Consists of a network of lymphatic vessels that withdraws excess tissue fluid from the body’s interstitial fluid compartments, filters through the lymph nodes and returns it to the bloodstream
Lymphoid System
Consists of the organs and glands associated wit the ingestion, mastication, deglutition, digestion and absorption of food and the elimination of feces after the nutrients have been absorbed
Digestive or Alimentary system (gastroenterology)
Consists of the air passages and lungs that supply oxygen and eliminate carbon dioxide
Respiratory System (Pulmonology)
Consists of the kidneys, ureters, urinary bladder and urethra which filter blood and subsequently produce transport, store and intermittently excrete liquid waste
Urinary system (Urology)
Consists of the gonads that produce oocytes and sperms and the other genital organs concerned with reporduction
Reproductive System (Obstetrics and gynecology for females and Andrology for males)
Consists of discrete ductless glands as well as cells of the intestine and blood vessel walls and specialized nerve endings that secrete hormones. These glands influence metabolism and coordinate and regulate other processes
Endocrine system (endocrinology)
Emphasizes aspects of the structure and function of the body important in the practice of medicine, dentistry, and the allied health sciences. Encompasses both regional and systemic approaches to studying anatomy and stresses clinical application
Clinical (applied) anatomy
The vertical plane passing longitudinally through the center of the body, diving it into right and left halves
Medial (medial sagittal) Plane
Vertical planes passing through the body parallel to the median plane
Sagittal Plane
Vertical planes passing through the body at right angles to the median plane dividing it into anterior and posterior portions
Frontal (coronal) Planes
Planes passing through the body at right angles to the median and frontal planes. Divides the body into superior and inferior parts.
Transverse planes
Planes or sections that do not align with preceding planes
Oblique planes or sections
Nearer to the surface
Superficial
Between a superficial and a deep structure
Intermediate
Farther from the surfacw
Deep
Nearer to the median plane
Medial
Farther from the median plane
Lateral
Nearer to the head
Superior (cranial)
Nearer to feet
Inferior (caudal)
Nearer to back
Posterior (dorsal)
Nearer to front
Anterior (ventral)
Farther from trunk or point of origin
Distal
Nearer to trunk or point of origin
Proximal
Refers to the superior or back surface of any part that protrudes anterior from the body
Dorsum
Indicates the inferior aspect or bottom of the foot
Sole (plantar surface)
Refers to the flat anterior aspect of the hand excluding the five digits
Palm (palmar surface)
Structures having right and left members
Bilateral
Structures occurring on one side only
Unilateral
Occurring on the same side of the body
Ipsilateral
Occurring on the opposite side of the body
Contralateral
bending of a part or decreasing the angle between body parts
Flexion
straightening a part or increasing the angle between body parts
Extension
Moving away from the median plane of the body in the frontal plane
Abduction
Moving toward the median plane of the body in the frontal plane
Adduction
circular motion of a joint where the proximal end is fixed, and the distal end is free to move in a circle
Circumduction
Backward movement of the mandible
Retrusion
Forward movement of the mandible
Protrusion
Backward bending and contracting of hand or foot
dorsiflexion
Movement of the foot in which the foot and toes flex downward to the sole
Plantarflexion
Turning the sole of the foot inward
Inversion
Turning the sole of the foot outward
Eversion
a rotational movement of the forearm that results in the palm facing anteriorly
Supination
a rotational movement of the forearm that results in the palm facing posteriorly
Pronation
movement of a body part in a superior direction, or moving upward
Elevation
movement of a body part in an inferior direction, or moving downward
Depression
Largest organ in the body; best indicator of general health
Integumentary system (skin)
Skin serves the following functions:
Protection, containment, heat regulation, sensation, synthesis and storage of vitamin D
Keratinized stratified epithelium with a tough outer surface composed of keratin. This layer is a tough protective outer surface that is continuously rubbed away. It is avascular.
Epidermis
Formed by a dense layer of interlacing collagen and elastic fibers. Fibers provide skin tone and account for the strength and toughness of the skin. Deep layer contains hair follicles with associated smooth arrector muscles and sebaceous glands
Dermis
Muscle that erects the hairs
Arrector muscle
Layer of skin composed of loose connective tissue and fat. Contains deepest parts of the sweat glands, the blood and lymphatic vessels and cutaneous nerves
Subcutaneous tissue
Dense, organized connective tissue layer devoid of fat that envelops most of the body deep to the skin and subcutaneous tissue
Deep fascia
Formed by the deep fascia that holds tendons in place during joint movement
Retinacula
Formed by the deep fascia prevent friction and enables structures to move freely over one another
Bursae
Consists of the bones of the head, neck and trunk
Axial skeleton
Consists of the bones of the limbs, including those forming the pectoral and pelvic girdles
Appendicular skeleton
Resilient, semirigid, avascular type of connective tissue that forms parts of the skeleton where more flexibility is necessary. Avascular.
Cartilage
This type of cartilage is found near synovial joints to help provide smooth low-friction gliding surfaces for free movement of articulating bones
articular cartilage
What function do bones serve
Protection for vital structures, support for the body and its vital cavities, mechanical basis for movement, storage for salts, continuous supply of new blood cells
What are the two types of bones
compact bone and spongy bone
Fibrous connective tissue covering that surrounds the bone
Periosteum
Tissue surrounding cartilage elements excluding articular cartilage
Perichondrium
When bone sometimes forms in soft tissue where it is not normally present
heterotopic bone
Type of bone that is a tubular structure
Long bone
Type of bone that are cuboidal; found only in the ankle and wrist
Short bone
Type of bone that serve protective functions
Flat bone
Type of bone that have various shapes
Irregular bone
Type of bone that develop in certain tendons
Sesamoid bone
The Humerus is an example of a
Long bone