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Anatomy Ch 1- An introduction
Organization and Directional terms
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What do humans have in common with ALL living things?
Responsiveness- to stimuli – the environment either external or internal Growth- in size, number or repair Reproduction- create new organism Movement-either internal or external Metabolism
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What is Anatomy
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What is Physiology Muscle Physiology Respiration Physiology
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Anatomy has perspectives
Microscopic Cytology Histology Macroscopic- or Gross Anatomy
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Levels of Organization
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The Hierarchy of Structural Organization
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 1.1
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Organ Systems Integumentary System
Function: Protection from environmental hazards, temperature control Organs Epidermis Dermis Hair follicles Sebaceous glands Nails Sensory receptors
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Organ Systems Skeletal System
Function: Support, protection of soft tissues, mineral storage, blood formation Organs Bones Cartilage Ligaments Bone Marrow
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Organ System Muscular System
Function – Locomotion, support, heat production Organs- Skeletal muscles Smooth muscles Cardiac muscles
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Organ Systems The Nervous System
Function – Directing immediate responses to stimuli, usually by coordinating the activities of other organ systems Organs Central Nervous system Brain Spinal cord Peripheral Nervous system
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Organ Systems The Endocrine System
Function –Directing long-term changes in the activities of other organ systems Organs Pituitary Thyroid Parathyroid Thymus Adrenal Kidneys Pancreas Gonads Testes ovaries
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Organ System Cardiovascular System
Function –Internal transport of cells and dissolved materials, including nutrients, wastes and gases Organs Heart Blood vessels Arteries Capillaries Veins Blood
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Organ Systems Lymphatic system
Function – Defense against infection and disease Organs Lymphatic vessels Lymph nodes Spleen thymus
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Organ System The Respiratory System
Function-Delivery of air to sites where gas exchange can occur between the air and circulating blood Organs – Nasal cavities Pharynx Larynx Trachea Bronchi Lungs Alveoli
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Organ System Digestive System
Function- Processing of food and absorption of nutrients, minerals, vitamins and water Organs Salivary glands Pharynx Esophagus Stomach Small intestine Liver Gallbladder Pancreas Large intestine
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Organ System The Urinary System
Function-Elimination of excess water, salts, and waste products Organs Kidneys Ureters Urinary Bladder Urethra
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Organ System Female and Male Reproductive Systems
Function – Production of sex cells and hormones Female Organs Ovaries Uterine Tubes Uterus Vagina External Genitalia Mammary glands
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Male organs Testes Accessory organs Epididymis Ductus Deerens Seminal vesicles External Genitalia Penis Scrotum
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Homeostasis Definition – the process of maintaining internal balance of a system Processes of homeostasis Negative feedback Positive feedback
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Homeostasis, con’t Necessary organs Receptors Effectors Control center
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What is Disease? When homeostasis FAILS As a function of pathogens
Virus Bacteria Parasite Fungus As a function of accident Bubonic Plague
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Anatomical Positions Supine Prone
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Anatomical Regions Quadrants
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Body Cavities and Membranes
Dorsal body cavity Cranial cavity Vertebral cavity
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Body Cavities and Membranes
Ventral body cavity Thoracic cavity – divided into three parts Two lateral parts each containing a lung surrounded by a pleural cavity Mediastinum – contains the heart surrounded by the pericardial sac
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Body Cavities and Membranes
Ventral body cavity Abdominopelvic cavity – divided into two parts Abdominal cavity –contains the liver, stomach, kidneys, and other organs Pelvic cavity – contains the bladder, some reproductive organs, and rectum
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Other Body Cavities
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Orientation and Directional Terms
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Orientation and Directional Terms
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Orientation and Directional Terms
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Regional Terms and Activities
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Body Planes and Sections
Transverse plane Runs horizontally and divides body into superior and inferior parts Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Figure 1.5
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Banana sectioned into planes
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Great review web site Try this quiz from animations- scroll down to “Anatomy” and watch animations, then take quizzes based on the animation
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