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What occur during reflex arc?
Definitions: 1. afferent neuron - sensory nerve 2. efferent neuron - motor nerve 3. monosynaptic - see below There are different types of reflexes but the simplest type is a monosynaptic reflex. This means the afferent neurons connect directly to the efferent neurons. For example the knee jerk reflex is a monosynaptic reflex: 1. The patellar tendon is stretched. 2. The afferent neuron (which has stretch sensors) send a signal up to the spinal cord. 3. In the spinal cord at the synapse. The electrical signal is changed to a chemical signal. 4. Chemical messengers travel across the synapse and stimulate the efferent neuron. 5. The efferent neuron changes these signals into electrical signals which travel down to the quadriceps muscle. 6. There is another synapse connecting the nerve to the muscle. chemical messengers travel across the synapse and stimulate the muscle to contract.
What two cranial nerves on the stimulated side must be functional for pupillary light reflex to occur?
The two cranial nerves that must be functional for the pupillary light reflex to occur are cranial nerve II (optic nerve) for the afferent pathway (carrying the visual information from the retina to the brain) and cranial nerve III (oculomotor nerve) for the efferent pathway (carrying the motor response to constrict the pupil).
What is the difference between transition and transversion in terms of genetic mutations?
Transition and transversion are two types of point mutations that occur in DNA. Transition is a mutation where a purine base (A or G) is replaced by another purine, or a pyrimidine base (C or T) is replaced by another pyrimidine. Transversion, on the other hand, is a mutation where a purine base is replaced by a pyrimidine base, or vice versa. In summary, the main difference between transition and transversion is the type of base substitution that occurs during the mutation process.
Where do reflex actions occur?
Reflex action means a reaction you have given involuntarily. If you touch the immensely painful object, the touching hand or foot is removed away with out your knowledge. Here three neurons are involved. 1) Afferent 2) In the spinal cord 3) Efferent. This is called as reflex arc. Simultaneously information goes to higher centers and you notice the the problem, later on. So reflex action occurs at the level of spinal cord only.
What is loss If the anterior root of a spinal nerve is severed?
The anterior or ventral roots carry motor or efferent information from motoneurons in the anterior horn to muscles. This is as opposed to the dorsal roots that convey sensory or afferent informaiton from the periphery to the dorsal horns of the spinal cord. This is not to be confused with ventral rami that subserve intrinsic muscles of the back and neck. Therefore if a ventral root is severed or cut there would be a loss on motor function to muscles in the distribution of that root (called a myotome).
How does urine formation occur?
urine formation begins in the glamerulus where blood moves through afferent arteriole into glamerulus and where filteration begins
What end of the capillary does filtration occur?
Arteriole
Where do shunt vessels occur?
connect the arteriole to the venules
What occur during reflex arc?
Definitions: 1. afferent neuron - sensory nerve 2. efferent neuron - motor nerve 3. monosynaptic - see below There are different types of reflexes but the simplest type is a monosynaptic reflex. This means the afferent neurons connect directly to the efferent neurons. For example the knee jerk reflex is a monosynaptic reflex: 1. The patellar tendon is stretched. 2. The afferent neuron (which has stretch sensors) send a signal up to the spinal cord. 3. In the spinal cord at the synapse. The electrical signal is changed to a chemical signal. 4. Chemical messengers travel across the synapse and stimulate the efferent neuron. 5. The efferent neuron changes these signals into electrical signals which travel down to the quadriceps muscle. 6. There is another synapse connecting the nerve to the muscle. chemical messengers travel across the synapse and stimulate the muscle to contract.
What 4 items are neded for transition to occur?
What 4 items are neded for transition
What two cranial nerves on the stimulated side must be functional for pupillary light reflex to occur?
The two cranial nerves that must be functional for the pupillary light reflex to occur are cranial nerve II (optic nerve) for the afferent pathway (carrying the visual information from the retina to the brain) and cranial nerve III (oculomotor nerve) for the efferent pathway (carrying the motor response to constrict the pupil).
Where does the transition reaction occur in the cell?
cristae
What temp is the water when transition on lakes occur?
water temp is 4C
Why triplet to singlet transition does not occur?
bcause singlet transition have higher energy than the triplet,,,,,,,,so energy flow farword direction
Which energy graph represents the nonspontaneous transition?
The energy graph that represents the nonspontaneous transition is the one that shows an increase in energy over time, indicating that energy input is required for the transition to occur.
What is a internal transition?
An internal transition is a type of transition within a state in a finite state machine where there is a change in the state without any change in the input. It is used to represent actions or behaviors that occur without input triggering the transition.
Which is the most unstable species in periodic table among transition and inner transition element?
The most unstable species in the periodic table among transition and inner transition elements is #43 Technetium (Tc). It is so unstable that it does not occur naturally.
