Human body system revision from unit 5

Nervous System: The body’s control system, responsible for receiving, processing, and transmitting information. • Key Components: – Brain: The control center of the nervous system. – Spinal Cord: A bundle of nerves that extends from the brain and transmits signals to and from the body. – Nerves: Bundles of neurons that carry signals throughout the body. – Neurons: Nerve cells that transmit signals. ∗ Sensory Neurons (Afferent Neurons): Carry signals from sensory receptors to the CNS. ∗ Motor Neurons (Efferent Neurons): Carry signals from the CNS to muscles and glands. ∗ Interneurons: Connect neurons within the CNS. – Synapses: Junctions between neurons where signals are transmitted. – Neurotransmitters: Chemical messengers released at synapses. • Types of Nervous Systems: – Central Nervous System (CNS): Brain and spinal cord. – Peripheral Nervous System (PNS): Nerves out of the CNS #Enzymes #BiologyGrade11 #DigestiveSystem # #HumanBody System #ApplicationOfBiology #ChemistryGrade12 #NewCurriculum #Barnoota Islaamaa #Microorganisms Part_2#Entranse Exam Preparation # #YouTubeEducation #Organic Chemistry #Chemical Reaction https://t.me/boost/xuiwiso2    / @abaaboobarnootaa   tiktok.com/@mohammedabrahim373