Nissl's granules are found in :
Main function of cerebellum is :
Cerebellum serves to coordinate the voluntary movements of skeletal muscles as well as posture, balance, and equilibrium.
Hence, the correct answer is Option A.
The correct sequence of meninges from inner to outer side is :
Somaesthetic or post central area is responsible for :
The somatosensory cortex is a part of your brain that receives and processes sensory information from the entire body. Other names of somatosensory cortex include somesthetic area and somatic sensory area.This part of the brain is essential for receiving sensory information from the body and processing it to initiate important movements that are required to deal a particular situation. It receives sensations of touch, pain, and vibration from the entire body.
Vagus nerve is composed mainly of parasymphathetic fibres. The preganglionic fibres forms a network is known as :
Auerbach's plexus (or myenteric plexus) provides motor innervation to both layers of the muscular layer, having both parasympathetic and sympathetic input, whereas Meissner's plexus has only parasympathetic fibres and provides secretomotor innervation to the mucosa nearest the lumen of the gut. It arises from cells in the vagal trigone also known as the nucleus ala cinerea, the parasympathetic nucleus of origin for the tenth cranial nerve (vagus nerve), located in the medulla oblongata. The fibres are carried by both the anterior and posterior vagal nerves. The myenteric plexus is the major nerve supply to the gastrointestinal tract and controls GI tract motility.
Na+/K+ pump in a cell is an example of –
[AMU - 2010]
Which one of the following is not an effect of sympathetic nervous system –
Parkinson's disease is associated with :
Parkinson's disease (PD) is a degenerative, progressive disorder that affects nerve cells in deep parts of the brain called the basal ganglia and the substantia nigra. Nerve cells in the substantia nigra produce the neurotransmitter dopamine and are responsible for relaying messages that plan and control body movement.
The thermoregulatory centre in the body is :
Nissl's granules are :
Which part of the brain is affected first in a drunk person :
When a person gets addicted to alcohol, many serious health problems can occur due to consumption of alcohol. The first part of brain to be affected first is Cerebellum. The will power and self control of the person gets reduced. Control over emotions and moral sense also gets reduced. Loss of muscle coordination also occurs as cerebellum is affected. As a result, speech becomes incoherent. Inflammation of axons also occur which causes neuritis.
In mammals, the brain centre, which regulates body temperature is situated in :
The hypothalamus is a part of the brain that is responsible for various hormone production.
The hormones produced by this area controls temperature, thirst, hunger, sleep, circadian rhythm, moods, and the release of some hormones.
It is located below the thalamus and above the brainstem.
It is also known as the thermostat since it regulates the temperature of the body according to the changes in one's environment.
Thus, the correct answer is option A.
The 3rd, 6th and 11th cranial nerves are :
In higher vertebrates (reptiles, birds, mammals) there are 12 pairs of cranial nerves- olfactory (I), optic (II), oculomotor (III), trochlear (IV), trigeminal (V), abducens (VI), facial (VII), vestibulocochlear (VIII), glossopharyngeal (IX), vagus (X), accessory (XI), and hypoglossal (XII).
The junction between the axon of one neuron and the dendrite of the next is called :
Which one of the followng is a motor nerve ?
Abducens nerve is the sixth cranial nerve. It is a motor nerve supplying the lateral rectus muscle of the eye, originating in the dorsal part of the tegmentum of the pons, passing through the cavernous sinus, and entering the orbit through the superior orbital fissure.
So, the correct answer is option B.
Nissl's granules are absent in :
Which of the following is purely motor cranial nerve?
Trigeminal nerve in case of frog is :
Frogs have ten pairs of cranial nerves, which pass information from the outside directly to the brain, and ten pairs of spinal nerves, which pass information from the extremities to the brain through the spinal cord. They are:
1. olfactory, 2. optic, 3. oculomotor, 4. trochlear, 5. trigeminal, 6. abducens, 7. facial, 8. auditory, 9. glossopharyngeal, 10. vagus.
In human body muscular co-ordination is controlled by :
The cerebellum is at the back of the brain, below the cerebrum. It's a lot smaller than the cerebrum. But it's a very important part of the brain. It controls balance, movement, and coordination (how your muscles work together).
Sense of smell is by :
Cerebrum is main part of the brain it controls most of the activity of our body. It sense taste, smell, hearing, etc.. olfactory lobe is responsible for the smell.