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Nerves are bundles of axons and their sheaths of connective tissue that extend from the CNS to peripheral structures,
Nerves are responsible for stimuli communication and responce
The Central nervous system CNS
- Brain
- Spinal Cord
The Prephrial nervous system PNS
- Cranial nerves, which arise from the brain
- Sensory/ afferent transmits STIMULI from the sensory organs to the CNS
- Motor/ efferent-transmits action potentials from the CNS to effector organs when a Stimuli is recieved causing some sort of reaction.
- Spinal nerves, which arise from the spinal cord
If the sensory Stimuli was an itch on the tip of your nose the motor action potential generated would send your hand to your nose to scratch the itch.
What else can I help you with?
In the reflex arc a muscle or gland is considered to be the?
In the reflex arc, a muscle or gland is considered to be the effector. Its role is to respond to the stimulus provided by the sensory neuron and produce the appropriate action, such as muscle contraction or gland secretion.
In this reflex action the muscle acts as the ....?
Effector
What event occurs as a result of a muscle action potential?
Reflex action
When a muscle is suddenly stretched what is called to action?
Stretch Reflex
Muscle action that is not under your control is?
Involuntary muscle action. Examples include the beating of the heart, digestion in the stomach, and reflex actions like blinking or sneezing.
What is effector muscle for calcaneal reflex action?
The effector muscle for the calcaneal reflex (also known as the Achilles reflex) is the gastrocnemius muscle in the calf. When the Achilles tendon is tapped, it causes a contraction of the gastrocnemius muscle, resulting in plantar flexion of the foot.
Is sweating a reflex action?
No it is not a reflex action
What is the difference between conscious action and reflex action?
Conscious action is a voluntary action that is controlled by the brain and involves awareness and decision-making, such as raising your hand. Reflex action is an involuntary action that is controlled by the spinal cord and occurs without conscious thought, such as quickly pulling your hand away from a hot surface.
What will happen if the arm's reflex action in these body part do not work?
If the arm's reflex action does not work, it can impact the body's ability to respond quickly to potential dangers. This could result in decreased coordination and slower reaction times when trying to protect the body from harm. It may also affect muscle tone and strength in the arm.
A rapid simple automatic response that involves few neurons is?
A reflex action is a fast, automatic response to a stimulus by an effector organ i.e. a muscle.
What is a similarity between a reflex action and a voluntary action?
Both require motor neurones to carry the nerve impulse to the effector in order for the muscle to contract carry out an action.
Is the knee-jerk reflex a simple reflex stretch reflex or a spinal reflex?
The knee-jerk reflex is a type of stretch reflex, which is a type of spinal reflex. It involves the stimulation of sensory neurons in the muscle spindles of the quadriceps muscle, leading to a quick contraction of the muscle in response to a sudden stretch.
