Functions of the Somatic Nervous System

CC licensed content, Shared previously. Sensory Receptor. When this occurs, emotional and behavioral instability can occur, making it difficult for an individual to function.

Synapse structure. The phrenic nerve is connected to the spinal cord at cervical levels 3 to 5.

The other big grouping of types of somatosensory information that tend to travel together includes the sense of pain, pain sense, temperature sense, and what we can call gross touch sense, or less precise touch sense information. Learned reflexes are much more complicated in their anatomical structure and result from repetitive actions, such as athletic training.

Primary Motor Infant Reflexes 3. Thanks for your feedback! Main article: Some sensations are felt locally, whereas others are perceived as affecting areas that are quite distant from the involved organ. While the order and general time period within which a primary infant motor reflex emerges remains consistent across populations, despite cultural, environmental, and socio-economic conditions, the advancement, refinement and maturation of an innate primary infant motor reflex can be qualitatively enriched by a number of factors.

Palatal Reflex A touch on the roof of the mouth by the sucking tongue causes swallowing to occur allowing baby to obtain nourishment.

Autonomic Reflexes and Homeostasis Anatomy and Physiology I

In the context of avoiding a threat like the lioness on the savannah, the sympathetic response for fight or flight will increase pupillary diameter so that more light hits the retina and more visual information is available for running away.

Sign up. Ask a homework question - tutors are online. The hormones released from the adrenal medulla—epinephrine and norepinephrine—will also bind to these receptors.

JCI - Citations to Interaction of Cardiopulmonary and Somatic Reflexes in Humans

Interneurons B. Ultimately, an improper patellar reflex may indicate CNS injury. Innate motor reflex schemes are the most complex form of innate motor reflexes.

These sensations are not the same as feeling high blood pressure or blood sugar levels. Multiple synapses involving one or more interneurons b. This reflex helps to prevent choking. Main content. Use MNRI techniques to appropriately engage reflexes, foster optimal reflex maturation, and guide and support the integration or re-integration of each primary infant motor reflex.

To sign up you must be 13 or older. Sensory nerves carry signals to the spinal cord, often connect with interneurons in the spine, and then immediately transmit signals down the motor neurons to the muscles that triggered the reflex. This preview shows 1 out of 2 pages. What are reflexes? Lastly, position sense, vibration sense, and fine touch sense from the face and some other parts of the head, will also come into the brain stem through cranial nerves, and it will also cross over to the other side, and go to about the same place deep in the cerebral hemisphere.