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A&P Lecture

chapter 1

Study of the structure and shape of the body and its parts Anatomy
Study of how the body and its parts work or function Physiology
Gross anatomy Large structures Easily observable Seen by the naked Eye
How the Body Parts Work Physiology
Structures cannot be seen with the naked eye Structures can only be viewed with a microscope Microscopic anatomy
Salivary glands Parotid gland Sublingual gland Submandibular gland
Mouth (oral cavity) Tongue Pharynx
Small intestine Duodenum Jejunum ileum
Large intestine Transverse colon Descending colon Ascending colon Cecum Sigmoid colon Rectum Appendix Anal canal
Intestines Duodenum Jejunum ileum Transverse colon Descending colon Ascending colon Cecum Sigmoid colon
Rib Cage Organs R L Liver Stomach Gallbladder Pancreas Spleen
Rectum Appendix Anal canal Anus
Levels of Structural Organization Organization is the most important characteristic of body structure The body as a whole is a unit constructed of the following smaller units
The body as a whole is a unit constructed of the following smaller units Chemical level - atoms and molecules Cells Tissues Organs—organizations of different kinds of tissues Systems—organizations of many different kinds of organs Organisms-made up of organ systems
Cells- the smallest structural units; organizations of various chemicals
Tissues— organizations of similar cells
Organs— organizations of different kinds of tissues
Systems— organizations of many different kinds of organs
Organisms- made up of organ systems
Structural Units: Cells -Smallest units of life -Perform all activities necessary to maintain life EX: Metabolism, assimilation, digestion, excretion, reproduction
Structural Units: Tissues -Made up of different types of cells Epithelial: covers and protects Connective: binds and supports other tissues Muscle: movement Nervous: connects sensory structures to motor structures
The integumentary System function external covering or the skin that covers our body providing waterproofing, sensory cushioning and protection of our deeper tissue from injury as well as vitamin D synthesize. It also excretes salts, urea in our sweat and regulates body temperature.
. Skeletal System function consist of bones, cartilages, ligaments and joints that support the body and framework used by muscles for movement. It also protects us from harm as well as provides formation of blood cells within the bone and stores minerals
. Muscular System is contractions/ shorten of the muscles causing movement, mobility. This functions as movement, standing, smiling, but also the beat of the heart, fluid movements and other substance through the body.
Created by: 1815104090