Exercise 14 review sheet nervous tissue – Embark on an intellectual journey with Exercise 14 Review Sheet: Nervous Tissue, an illuminating guide that unravels the complexities of this fundamental biological system. Delve into the depths of nervous tissue, exploring its functions, types, and intricate structures, including neurons, dendrites, axons, and cell bodies.
Uncover the mechanisms underlying electrical and chemical signaling within neurons, shedding light on the role of ion channels, action potentials, and neurotransmitters. Witness the organization of the nervous system, encompassing the central nervous system (CNS) and peripheral nervous system (PNS), and delve into the protective function of the blood-brain barrier.
1. Nervous Tissue Overview
Nervous tissue is a specialized tissue that constitutes the nervous system, which is responsible for controlling and coordinating bodily functions, receiving and processing sensory information, and generating responses. It consists of two main types of cells: neurons and neuroglia. Neurons are the functional units of the nervous system, transmitting electrical and chemical signals to communicate information.
Neuroglia provide support and protection for neurons.
Types of Nervous Tissue
- Central nervous system (CNS): Consists of the brain and spinal cord, which are the primary processing and control centers of the body.
- Peripheral nervous system (PNS): Consists of all nervous tissue outside the CNS, including nerves, ganglia, and sensory receptors.
Structure of Neurons, Exercise 14 review sheet nervous tissue
Neurons have a complex structure that enables them to transmit signals efficiently. They consist of three main components:
- Dendrites: Branching extensions that receive signals from other neurons.
- Cell body (soma): Contains the nucleus and other essential organelles.
- Axon: A long, slender projection that transmits signals away from the cell body.
Essential FAQs: Exercise 14 Review Sheet Nervous Tissue
What are the primary functions of nervous tissue?
Communication, control, and coordination of bodily activities.
Describe the process of synaptic transmission.
Neurotransmitters are released from the presynaptic neuron, bind to receptors on the postsynaptic neuron, and are then reabsorbed or broken down.
What is the role of the cerebellum in motor control?
Coordination of movement, balance, and posture.
