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This 6 page Class Notes was uploaded by BettyAnn Mead on Friday February 6, 2015. The Class Notes belongs to Biology 152 at University of Massachusetts taught by Peteh in Winter2015. Since its upload, it has received 66 views.
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Date Created: 02/06/15
Tissue Types Self Study Guide There are four different types of tissue Connective o Nervous Muscle o Epithelial Connective Tissue Cells that are loosely arranged in a liquid jelly like or solid extracellular matrix 0 Loose connective tissue serves as a packing material between organs 0 Blood transports material throughout the body Cartilage and bone support the body Nervous Tissue Nerve cells or neurons make up nervous tissue 0 All neurons have connections to other cells and deliver signals in the form of electrical impulses Muscle Tissue Muscle tissue functions in movement Muscle cells are packed with specialized proteins that move in response to phosphorylation Three types 0 Striated 0 Cardiac 0 Smooth Striated Muscle Most muscle tissue is striated muscle which consists of long cells called muscle bers Cardiac Muscle Cardiac muscle makes up the walls of your heart 0 Like skeletal muscle in structure but each cardiac muscle cells branched and makes direct contact with other cardiac muscles 0 Connections help transmit signals from one cardiac muscle call to another during a heartbeat Smooth Muscle Are tapered at each end and form a tissue that line the walls of the digestive tract and the walls of arteries 0 Different types of neurons control the contraction of smooth muscle calls and striated muscle cells Epithelial Tissue Cover the outside of the body and line the surface of organs 0 These tissues consist of layers of tightly packed cells Organs Organ A structure that serves a specialized function and consists f several tissues Systems A system consists of tissues and organs that work in conjunction to preform a function lntegumentary System 0 Hair 0 Skin 0 Nails 0 Encloses internal body structures 0 Site of many sensory receptors Skeletal System Cartilage 0 Bones 0 Joints 0 Supports the body 0 Enables movement with muscular system Muscular System Skeletal muscles Tendons o Enables movement with skeletal system 0 Helps maintain body temperature Nervous System 0 Brain Spinal cord 0 Peripheral nerves 0 Detects and processes sensory information o Activates bodily responses Endocrine System Pituitary gland Thyroid gland Pancreas Adrenal gland TestesOvaries o Secretes hormones o Regulates bodily processes Cardiovascular System 0 Heart 0 Blood vessels 0 Delivers oxygen and nutrient to tissues 0 Equalizes temperature in the body Lymphatic System 0 Thymus Lymph nodes Spleen Lymphatic vessels 0 Returns uid to blood 0 Defends against pathogens Respiratory System Nasalpassage Trachea Lungs o Removes carbon dioxide from the body 0 Delivers oxygen to blood Digestive System Stomach 0 Liver Gall bladder 0 Large intestine Small intestine o Processes food for use by the body 0 Removes wastes from undigested food Urinary System Kidneys Urinary bladder 0 Controls water balance in the body 0 Removes wastes from blood and excretes them Male Reproductive System 0 Epididymis Testes o Produced sex hormones and gametes o Delivers gametes to female Female Reproductive System Mammary glands Ovaries Uterus o Produced sex hormones and gametes 0 Supports embryofetus until birth Produced milk for infant The Nervous System Sensory Receptor l l l Integration l l Effector Sensory lnput Motor Output Neuron or Nerve Cell The functional unit of the nervous system Neuronal Morphology Nerve impulses are conducted along a neuron Dendrite Cell Body Axon Hillock l Axon Dendrites o Projections from the cell body 0 Receive information from other neurons Cell Body 0 Contains nucleus and organelles Axon Nerve impulse propagates along single axon away from cell body Axon Hillock Where axon joins cell body 0 Transmission and integration of nerve signals Synaptic Terminal 0 Nerve ending that relays signals via neurotransmitters to next neuron Synapse Place where synaptic terminals of one neuron come into contact with another neuron
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