CNS 1
What are the main parts of the Central Nervous System?
Brain and spinal chord
What are the two main parts of the nervous system?
Central nervous system (CNS) & Peripheral nervous system (PNS)
The Peripheral Nervous System (PNS) connects what?
Connects all receptors and effectors in the body to the central nervous system
What are the primary functions of the Somatic Nervous System?
To receive information from external stimuli about the body’s position and to transmit signals for voluntary muscle contractions
_____ matter is composed of neuron cell bodies and dendrites.
Grey
What is the largest part of the brain?
Cerebrum
Name the three types of nerves that make up the PNS.
Sensory nerves, motor nerves, mixed nerves
What is the primary function of the autonomic nervous system?
To regulate and control involuntary body functions
1. Skull and spine, 2. Meninges (dura, arachnoid, pia mater), 3. Cerebrospinal fluid between the meninges
The brain stem is a part of the CNS that regulates ____________ .
body functions such as auditory reflexes, blood pressure, and communication between cerebrum and other brain parts
______ nerves send signals to the effector organs.
Motor nerves
What are the two main parts of the autonomic nervous system? What is the difference between them?
Sympathetic nervous system (controls active actions) and Parasympathetic nervous system (controls resting and relaxing actions).
What is the function of the spinal cord?
To produce reflex actions (without the brain) & to carry sensory and motor nerve impulses
Memory, reasoning, intelligence, conscience, will
There are two systems that are a part of the Peripheral Nervous System. What are they?
Somatic nervous system and autonomic nervous system
What are voluntary actions?
Slower and elaborate actions made by the cerebral cortex
The cerebellum regulates body functions such as: _______ and _______.
Receiving information for inner balance & coordinating motor impulses sent by the brain
The hypothalamus controls what?
The pituitary gland, which releases stimulating hormones (SH) to regulate the activity of other endocrine glands.
What are the two types of nerves in the somatic nervous system?
1. cranial nerves and 2. spinal nerves
Define reflexes
Quick, automatic actions that don’t involve the bra; Automatic response with sensory neurons, interneurons and motor neurons