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The Language of Anatomy
• Special terminology is used to prevent misunderstanding
• Exact terms are used for:
• Position
• Direction
• Regions
• Structures
Anatomical Terminology
• Superior – above
• Inferior – below
• Anterior – front
• Posterior – behind
• Medial – toward the middle
• Lateral – toward the side
Ipsilateral – referring to two or more anatomical parts being on the same side
of the body
Contralateral – referring to anatomical parts being on different sides of the body.
Anatomical Terminology
• Proximal – describes a part that is closer
• Distal – describes a part that is farther away
• Superficial – situated near the surface
• Peripheral – situated outward or near the surface
• Deep – more internal
Body Landmarks
• Anterior
Body Landmarks
• Posterior
Body Sections
• Sagittal – refers to a lengthwise cut that divides the body into right and left portions.
• Transverse (or horizontal) – refers to a cut that divides the body into superior and inferior portions.
• Coronal (or Medial) – refers to a section that divides the body into anterior and posterior portions.
Body Planes
Body Cavities
Quadrants
Abdominal Regions
• Epigastric – the upper middles portion
• Left and right hypochondriac – on each side of the epigastric
• Left and right lumbar – one each side of the umbilical
• Hypogastric – the lower middles portion
• Left and right iliac (inguinal) – each side of the hypogastric.
Thoracic and Abdominopelvic Membranes
•Pleura/Pleural: membrane(s), watery film
separation
•Parietal: any membrane attached to the wall of a
body cavity. Surrounds organs within the cavity
•Visceral: membranes that covers internal organs
•Pericardial membrane(s)
•Visceral pericardium
•Parietal pericardium
•Peritoneal membrane
•Pareital peritoneum
•Visceral peritoneum
Body Cavities
• Dorsal Cavity:
– cranial cavity (brain) and spinal canal (spinal cord & nerves)
Body Cavities
• Ventral Cavity: divided by diaphragm – Upper thoracic cavity
• Pleural cavities enclose lungs
• Pericardial cavity surrounds heart
• Cavities are lined by serous membranes
– Lower abdominopelvic cavity
• Viscera of abdominal: stomach, spleen, pancreas, liver, gallbladder, small intestine, most of large
• Viscera of pelvic: urinary bladder, portions of large intestine, internal female and male reproductive structures
Medical and Applied Sciences
• Cardiology – study of the heart and vascular system
• Dermatology – study of the skin
• Endocrinology - study of hormones , hormone-secreting glands, and associated diseases.
• Epidemiology – study of the factors that contribute to determining the distribution and frequency of health-related conditions.
Medical and Applied Sciences
• Gastroenterology – study of the stomach and intestines
• Geriatrics – Branch of medicine dealing with older individuals and their medical problems
• Gynecology – study of the female reproductive system
• Hematology – study of blood and blood deseases.
Medical and Applied Sciences
• Histology – study of the structure and function of tissues (microscopic anatomy)
• Immunology – study of the body’s resistance to disease
• Neonatology – study of newborns and the treatment of their disorders
• Nephrology – study of the structure and function of the kidneys
Medical and Applied Sciences
• Neurology – study of the brain and nervous system
• Obstetrics – branch of medicine dealing with pregnancy and childbirth
• Oncology – study of cancer
• Ophthalmology – study of the eye and eye disease
• Otolaryngology – study of the ear, throat, larynx, and their diseases
Medical and Applied Sciences
• Pathology – study of structural and functional changes within the body associated with disease
• Pediatrics – branch of medicine dealing with children and their diseases
• Pharmacology – study of drugs and their uses in the treatment of disease
• Podiatry – study of the care and treatment of the feet
Medical and Applied Sciences
• Psychiatry – branch of medicine dealing with the mind and its disorders
• Radiology – Study of X rays and radioactive substances
• Toxicology – study of poisonous substances and their effects on physiology
• Urology – branch of medicine dealing with the urinary and male reproductive systems and their diseases
Performance Objectives – Did we learn this?
• Define Anatomy and Physiology.
• Describe the relationship between structure and function.
• Define basic directional terms.
• Describe the anatomical position.
• Describe the major cavities of the body.
• Describe the levels of organization of the body and give major characteristics of each level.
Performance Objectives continued
• List the organ systems.
• Define homeostasis and explain why it is important.
• Describe the negative-feedback system and the positive-feedback system and their relationship to homeostasis.
• Name and describe the three major planes of the body or organ.