Table of Contents
Which nervous system controls the face?
The facial nerve is the seventh (cranial nerve VII) of the 12, paired cranial nerves. It emerges from the brainstem between the pons and the medulla and controls the muscles of facial expression.
What nerve comes directly off the brain?
Cranial nerves are the nerves that emerge directly from the brain (including the brainstem), in contrast to spinal nerves (which emerge from segments of the spinal cord). Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck.
What connects the brain to the nervous system?
Spinal Cord This portion of the central nervous system runs down the inside of the spinal column, connecting the brain with nerves going to the rest of the body.
What part of brain controls facial muscles?
frontal lobe
There is an area in the frontal lobe of the left hemisphere called Broca’s area. It is next to the region that controls the movement of facial muscles, tongue, jaw and throat.
What type of nerve is facial nerve?
The facial nerve is the seventh cranial nerve. It contains the motor, sensory, and parasympathetic (secretomotor) nerve fibers, which provide innervation to many areas of the head and neck region. The facial nerve is comprised of three nuclei: The main motor nucleus.
What does the facial nerve supply?
The facial nerve provides motor innervation of facial muscles that are responsible for facial expression, parasympathetic innervation of the glands of the oral cavity and the lacrimal gland, and sensory innervation of the anterior two-thirds of the tongue.
Are facial nerves peripheral or central?
The cranial nerves are considered components of the peripheral nervous system (PNS), although on a structural level the olfactory (I), optic (II), and trigeminal (V) nerves are more accurately considered part of the central nervous system (CNS).
Is the brain part of the nervous system?
The nervous system has two main parts: The central nervous system is made up of the brain and spinal cord. The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
What does the brain do in the nervous system?
What Does the Brain Do? The brain controls what we think and feel, how we learn and remember, and the way we move and talk. But it also controls things we’re less aware of — like the beating of our hearts and the digestion of our food. Think of the brain as a central computer that controls all the body’s functions.
What’s the sympathetic nervous system?
The sympathetic nervous system directs the body’s rapid involuntary response to dangerous or stressful situations. A flash flood of hormones boosts the body’s alertness and heart rate, sending extra blood to the muscles.
What is the anatomy of the nervous system in humans?
Anatomy of the Nervous System. Along the way, various nerves branch out to the entire body. These make up the peripheral nervous system. Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by a set of ring-shaped bones called vertebrae.
What does the central nervous system do in the brain?
This portion of the central nervous system runs down the inside of the spinal column, connecting the brain with nerves going to the rest of the body. The frontal lobe, located behind the forehead, does much of the work of complex thinking, like planning, imagining, making decisions, and reasoning.
What are the cranial nerves in the human body?
Toggle Anatomy System. The muscles of the head and neck are also controlled by various cranial nerves including the facial nerve (facial expression) and accessory nerve (head and neck movements). Wandering through the neck and torso, the vagus nerve communicates vital information from the brain to the heart and intestines.
How does the nervous system send messages to the body?
Your brain uses your nerves to send messages to the rest of your body. Each nerve has a protective outer layer called myelin. Myelin insulates the nerve and helps the messages get through. Peripheral nervous system: Your peripheral nervous system consists of many nerves that branch out from your CNS all over your body.