What are the simple stretch reflexes?
What are the simple stretch reflexes?
Examples
- Jaw jerk reflex (CN V)
- Biceps reflex C5/C6.
- Brachioradialis reflex C6.
- Extensor digitorum reflex C6/C7.
- Triceps reflex C6/C7.
- Patellar reflex L2-L4 (knee-jerk)
- Ankle jerk reflex S1/S2.
What are the superficial cord reflexes?
Biceps Reflex- The biceps-jerk reflex is a more complex, three neuron reflex (polysynaptic). This reflex assesses C5- C8 and T1. b. Superficial Cord Reflexes- The superficial cord reflexes (abdominal and plantar reflexes) are initiated by stimulation of receptors in the skin and mucosa.
What are two cord mediated reflexes?
There are two types: autonomic reflex arc (affecting inner organs) and somatic reflex arc (affecting muscles). Autonomic reflexes sometimes involve the spinal cord and some somatic reflexes are mediated more by the brain than the spinal cord.
What are the types of somatic reflexes?
In our discussion we will examine four major reflexes that are integrated within the spinal cord: the stretch reflex, the Golgi tendon reflex, the withdrawal reflex and the crossed extensor reflex.
Can the stretch reflex be elicited in a Pithed animal that is an animal in which the brain has been destroyed )?
CAN THE STRETCH REFLEX BE ELICITED IN A PITHED ANIMAL (THAT IS, AN ANIMAL IN WHICH THE BRAIN HAS BEEN DESTROYED)? YES, EVEN WITHOUT THE BRAIN A STRETCH REFLEX ONLY NEEDS A AFFERENT, CONTROL CENTER, AND MOTOR FIBERS TO BE ELICITED. THESE COMPONENTS STILL STAY INTACT IF THE BRAIN HAS BEEN DESTROYED.
Is the plantar reflex a stretch reflex?
The plantar reflex is a reflex elicited when the sole of the foot is stimulated with a blunt instrument. The reflex can take one of two forms. In healthy adults, the plantar reflex causes a downward response of the hallux (flexion)….Plantar reflex.
| Plantar reflex Babinski response/Babinski sign (pathological) | |
|---|---|
| MedlinePlus | 003294 |
Can the stretch reflex be elicited in a Pithed animal that is an animal in which the brain has been destroyed )? Explain your answer?
Could you get a stretch reflex in a brain dead animal?
True reflexes such as the myotactic or stretch reflex of muscles might occur briefly in carcasses. Myotatic reflexes normally act via a sensory input from neuromuscular spindles so that a muscle will contract to resist a stretching force.
Can the stretch reflex be elicited in a Pithed animal explain your answer?
Which reflexes are mediated by the spinal cord?
Spinal reflexes include the stretch reflex, the Golgi tendon reflex, the crossed extensor reflex, and the withdrawal reflex.
Can the stretch reflex be elicited in a singly Pithed animal?
Can the stretch reflex be elicited in a pithed animal?
Ciliospinal reflex and pupillary light reflex. Can the stretch reflex be elicited in a pithed animal (that is, an animal in which the brian has been destroyed)? Explain. Yes, Even without the brain a stretch reflex only needs an afferent control center, and motor fibers to be elicited.
Can stretch muscles be activated in an animal without a brain?
CAN THE STRETCH REFLEX BE ELICITED IN A PITHED ANIMAL (THAT IS, AN ANIMAL IN WHICH THE BRAIN HAS BEEN DESTROYED)? YES, EVEN WITHOUT THE BRAIN A STRETCH REFLEX ONLY NEEDS A AFFERENT, CONTROL CENTER, AND MOTOR FIBERS TO BE ELICITED.
Is brain activity necessary for the patellar reflex?
When the subject was concentrating on an arithmetic problem, did the change noted in the patellar reflex indicate that the brain activity is necessary for the patellar reflex or only that i may modify it? The pupillary light reflex, the crossed-extensor reflex, and the corneal reflex illustrate the purposeful nature of reflex activity.
What are the different types of somatic reflexes?
Reflexes classified as somatic reflexes include a. Abdominal reflex, achilles reflex, corneal reflex, crossed-extensor reflex, gag reflex, patellar reflex, and plantar reflex.