Nervous System Flashcards
What is the name of the structure that connects the L and R hemispheres of the brain, allowing for integrated processing and coordination of various functions?
Corpus callosum
During prenatal development the caudal part of the embryo differentiates into which organ
Spinal cord
Layer of fat acts as an insulator on the neuron, helping transmission of the nerve signal
Myelin sheath
Balanced functioning of the sympathetic and parasympathetic nervous system plays a crucial role in maintaining this function
Homeostasis
Fight or flight response is part of this system
Sympathetic nervous system
Rest and relaxed or feed and breed is part of this system
Parasympathetic
Two types of cells present in the nervous system are
Neurons and glia
3 layers of protective membranes that surrounds the brain and spinal cord that provides physical support, cushioning, and protection for neural tissues
Meninges
Clear colorless fluid serves essential functions including cushioning the brain and spinal cord, providing buoyancy, and facilitating the exchange of nutrients and waste products
Cerebral spinal fluid CSF
Network of interconnected cavities within the brain that are filled with CSF
Ventricles
All senses except for smell are routed through this organ before being directed to other areas of the brain for processing.
Thalamus
This organ plays a central role in regulating various bodily functions and behaviors serving as a link between the nervous system and the endocrine system
Hypothalamus
Conduit for transmitting sensory info to the brain and coordinating motor responses
Spinal cord
Messengers that carry important info between the brain and different parts of the head, face, and neck
Cranial nerves
Types of nerves that carry messages between the brain and the rest of the body allowing for movement, feeling, and responsiveness to the world
Spinal nerves
Connect CNS to the rest of the body transmitting signals between the brain and spinal cord and the organs, muscles, and sensory receptors throughout the body.
Peripheral nervous system
Component of the peripheral nervous system that is responsible for voluntary control of skeletal muscles and for relaying sensory information from the body to the CNS
Somatic nervous system
The point of connection between a motor neuron and a skeletal muscle fiber
Neuromuscular junction
Operating unconsciously this part of the PNS regulates involuntary bodily functions such as heart rate, digestion, respiratory rate, and glandular secretion
Autonomic nervous system
Nerves that control the muscles in the face, jaw, and neck, allowing for facial expressions chewing of food and movement of the head
Cranial nerves
What organs are included in the CNS
Brain and spinal cord
A network of interconnected cavities within the brain that are filled with CSF
Ventricles
Identify the parts of a neuron
Dendrite, axon, soma, terminal axon, myelin sheath, synapse
The part of the neuron that receives messages and sends them to the body
Dendrite
