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What tract carries sensory impulses from the lower limbs and inferior body trunk?
The spinothalamic tract carries sensory impulses related to pain, temperature, and crude touch from the lower limbs and inferior body trunk to the brain.
What part of the brain is injured when you can't feel anything in your lower body?
When you can't feel anything in your lower body, it may indicate injury to the spinal cord, particularly in the regions that transmit sensory information from the lower body to the brain. Damage to the spinal cord, especially in the thoracic or lumbar regions, can disrupt nerve pathways responsible for sensation. Additionally, injury to the somatosensory cortex in the brain, which processes sensory information, could also contribute to this loss of feeling.
What are the ascending fibres of projection fibres?
They are fibres which radiate from thalamus and metathalamus to the cerebral cortex. They include:Anterior thalamic radiationsuperior thalamic (sensory) radiationposterior thalamic radiation, which consists of = optic + auditory radiations
Which structure links the upper and lower centers of the brain?
The brainstem is the structure that links the upper and lower centers of the brain. It connects the cerebrum (upper brain) to the spinal cord (lower brain) and is responsible for basic life functions such as breathing, heartbeat, and blood pressure regulation.
What is the reaction of an organism to stimuli?
For an instant, unlearned response, it does it with its reflex arc, which is made of 5 elements- (i)a receptor- a sensory organ, like an eye, ear, tongue or touch corpuscle (ii)sensory neuron, (iii)a coordinator neuron, (iv) a motor neuron and (v)an effector which normally is a muscle-either involuntary smooth or voluntary striped muscle. A receptor receives the stimulus, a sensory neuron carries the impulse in the form of an electric impulse, a coordinator neuron takes the necessary suitable action, a motor neuron carries the decision to the effector and finally the effector brings out suitable response. Lower animals lack an organized nervous system, but still the mechanism is more or less similar.
What tract carries sensory impulses from the lower limbs and inferior body trunk?
The spinothalamic tract carries sensory impulses related to pain, temperature, and crude touch from the lower limbs and inferior body trunk to the brain.
What part of the brain is injured when you can't feel anything in your lower body?
When you can't feel anything in your lower body, it may indicate injury to the spinal cord, particularly in the regions that transmit sensory information from the lower body to the brain. Damage to the spinal cord, especially in the thoracic or lumbar regions, can disrupt nerve pathways responsible for sensation. Additionally, injury to the somatosensory cortex in the brain, which processes sensory information, could also contribute to this loss of feeling.
What are the ascending fibres of projection fibres?
They are fibres which radiate from thalamus and metathalamus to the cerebral cortex. They include:Anterior thalamic radiationsuperior thalamic (sensory) radiationposterior thalamic radiation, which consists of = optic + auditory radiations
Where is Cervical plexus in the sensory pathway?
lower back
What we perceive as the pitch of sound is our sensory response to its?
frequency. The pitch of a sound is determined by the frequency of the sound wave, with higher frequencies corresponding to higher pitch sounds and lower frequencies to lower pitch sounds. Our ears and brain interpret these frequency signals to perceive pitch.
What is lower pons?
The lower pons is a region located in the brainstem, which is responsible for relaying sensory and motor information between the cerebrum and the medulla oblongata. It also plays a vital role in controlling certain functions such as facial expressions, sleep, and consciousness.
What is the Trigeminal branch to the tongue?
None actually go to the tongue... Trigeminal nerve - (V) fifth cranial nerve V1: Ophtalmic-eye, forehead and nose.1-Sensory V2: Maxillary - upper teeth, gums and lip, the cheek, lower eyelid and the side of the nose.1-Sensory V3: Mandibular - lower teeth, lower gums and lower lip.1-Sensory - Jaw.2-Motor 1SENSORY: Transmits pressure, touch, pain and temperature signals to the brain. 2MOTOR: Controls movement. http://www.tnaaustralia.org.au
What is lower threshold voltage?
the voltage above which any device starts conducting
What section of the brain includes the medulla?
the lower half of the brain stem.
Which structure links the upper and lower centers of the brain?
The brainstem is the structure that links the upper and lower centers of the brain. It connects the cerebrum (upper brain) to the spinal cord (lower brain) and is responsible for basic life functions such as breathing, heartbeat, and blood pressure regulation.
What is the reaction of an organism to stimuli?
For an instant, unlearned response, it does it with its reflex arc, which is made of 5 elements- (i)a receptor- a sensory organ, like an eye, ear, tongue or touch corpuscle (ii)sensory neuron, (iii)a coordinator neuron, (iv) a motor neuron and (v)an effector which normally is a muscle-either involuntary smooth or voluntary striped muscle. A receptor receives the stimulus, a sensory neuron carries the impulse in the form of an electric impulse, a coordinator neuron takes the necessary suitable action, a motor neuron carries the decision to the effector and finally the effector brings out suitable response. Lower animals lack an organized nervous system, but still the mechanism is more or less similar.
What is the difference between gracile tract and cuneate tract?
They both carry proprioceptive and fine touch sensations. But, gracile tract carries sensations from lower halfof our body. On the other hand, cuneate tract carries sensations from upper half of our body.
