Which of the following terms refers to the inability to recognize objects through a particular sensory system?
Agnosia typically is defined as the inability to recognize sensory stimuli. Agnosia presents as a defect of one particular sensory channel, such as visual, auditory, or tactile.
When learning about the nervous system Students learn that which nervous system regulates the expenditure of energy?
The central nervous system (CNS), particularly the hypothalamus, has been shown to play a critical role in the regulation of these events by sensing changes in the concentrations of nutrients and hormones and coordinating subsequent physiological responses (1–5).
Which lobe of the brain is responsible for concentration and abstract thought?
The frontal lobe, the largest lobe, controls concentration, abstract thought, information storage or memory, and motor function. The parietal lobe contains the primary sensory cortex, which analyzes sensory information and relays interpretation to the thalamus and other cortical areas.
Which of the following cranial nerves is responsible for salivation tearing taste and sensation in the ear?
Lacrimation (tearing) and salivation are also stimulated by the 7th cranial nerve. The 7th cranial nerve also has some sensory component including the sense of taste (anterior 2/3 of the tongue).
What is associative agnosia mean?
Associative visual agnosia refers to difficulty with understanding the meaning of what they are seeing. They can draw or copy but do not know what they have drawn. They correctly perceive the form and know the object when tested with verbal or tactile information, but cannot identify the object.
What is the term for an inability to name objects or colors despite being able to see and recognize them?
Visual agnosia is an impairment in recognition of visually presented objects.
What is sympathetic and parasympathetic?
The autonomic nervous system comprises two parts- the sympathetic and parasympathetic nervous system. The sympathetic nervous system activates the fight or flight response during a threat or perceived danger, and the parasympathetic nervous system restores the body to a state of calm.
What is a sympathetic nervous system?
sympathetic nervous system, division of the nervous system that functions to produce localized adjustments (such as sweating as a response to an increase in temperature) and reflex adjustments of the cardiovascular system.
What is frontal lobe responsible for?
The frontal lobe is important for cognitive functions and control of voluntary movement or activity. The parietal lobe processes information about temperature, taste, touch and movement, while the occipital lobe is primarily responsible for vision.
What is temporal lobe?
The temporal lobes sit behind the ears and are the second largest lobe. They are most commonly associated with processing auditory information and with the encoding of memory.
What nerve controls salivation?
The parotid mainly produces watery, or serous saliva. It’s duct opens in the mouth just opposite the crown of the 2nd upper molar tooth. The gland’s productions are predominantly controlled by a nerve called the glossopharyngeal nerve which originates in the superior salivatory nucleus of the medulla in the brainstem.
Which nerve is responsible for swallowing?
glossopharyngeal nerve
The glossopharyngeal nerve enervates muscles involved in swallowing and taste. Lesions of the ninth nerve result in difficulty swallowing and disturbance of taste.
What is electelectromyography (EMG)?
Electromyography (EMG) measures muscle response or electrical activity in response to a nerve’s stimulation of the muscle. The test is used to help detect neuromuscular abnormalities. During the test, one or more small needles (also called electrodes) are inserted through the skin into the muscle.
How do you stimulate a nerve with a recording electrode?
A recording electrode will be attached to the skin over the nerve with a special paste and a stimulating electrode will be placed at a known distance away from the recording electrode. The nerve will be stimulated by a mild and brief electrical shock given through the stimulating electrode.
Do muscles produce electrical signals during rest?
Muscle tissue does not normally produce electrical signals during rest. When an electrode is inserted, a brief period of activity can be seen on the oscilloscope, but after that, no signal should be present. After an electrode has been inserted, you may be asked to contract the muscle, for example, by lifting or bending your leg.