What is the opposite of cranial in anatomy?
What is the opposite of cranial in anatomy?
Cranial. (superior in humans) opposite of cranial, toward the tail end of the body. Caudal. (inferior in humans)
What is the opposite of caudal in anatomy?
Inferior (or caudal) means just the opposite: “away from the head,” or “lower/under/below.” An inferior product has a “lower” quality of material compared to something else.
What is distal and proximal?
In medicine, it refers to parts of the body further away from the center. For example, the hand is distal to the shoulder. Distal is the opposite of proximal. Distal refers to distance, while proximal indicates proximity.
What is the dorsal side?
The dorsal (from Latin dorsum ‘back’) surface of an organism refers to the back, or upper side, of an organism. If talking about the skull, the dorsal side is the top. The ventral (from Latin venter ‘belly’) surface refers to the front, or lower side, of an organism.
What is dorsal view?
Dorsal means the upper surface of an organism. For example, the dorsal view of a butterfly would be viewing the insect from above: Insects within a reference collection are commonly mounted so that their dorsal surface is visible.
What does a dorsal fin mean?
: a flat thin part on the back of some fish (such as sharks)
What is difference between dorsal and ventral?
The term ventral refers to the anterior (front) aspect of the embryo, while dorsal refers to the posterior (back).
Is the brain dorsal?
Dorsal: pertaining to the back or upper surface of the body; opposite of “ventral.” (NCIt) Structures found on the top of the human brain or on the top of some other structure within the brain. Below the midbrain, dorsal = posterior. Rostral: toward the snout.
Are eyes inferior to the brain?
Inferior: means the part is below another or towards the feet (caudal). Anterior: means towards the front (the eyes are anterior to the brain) – [ventral].
How can I remember my facial muscles?
Mnemonic #3:
- Facial Expression = all the muscles of facial expression.
- P = Posterior Digastric muscle.
- S = Stapedius muscle.
- S = Stylohyoid muscle.
- P = Platysma.
How do you remember efferent and afferent?
A good way to remember afferent vs. efferent neurons is: Afferent Arrives, Efferent Exits.
What is the afferent pathway?
a neural pathway that conducts impulses from a sense organ toward the brain or spinal cord or from one brain region to another. Compare efferent pathway. a.
What’s the difference between afferent and efferent arterioles?
Afferent arteriole is a branch of the renal artery that brings in blood to the glomerulus. Efferent arteriole is a branch of the renal artery that drains blood away from the glomerulus. Afferent arteriole carries blood to the glomerulus. Efferent arteriole takes blood away from the glomerulus.
What are efferent pathways?
Nerve structures through which impulses are conducted from a nerve center toward a peripheral site. Such impulses are conducted via efferent neurons (NEURONS, EFFERENT), such as MOTOR NEURONS, autonomic neurons, and hypophyseal neurons.
What is a synapse?
The synapse, rather, is that small pocket of space between two cells, where they can pass messages to communicate. A single neuron may contain thousands of synapses. In fact, one type of neuron called the Purkinje cell, found in the brain’s cerebellum, may have as many as one hundred thousand synapses.
What does efferent mean?
conducting outward
What is general somatic efferent?
General somatic efferent fibers carry motor impulses to somatic skeletal muscles. In the head, the tongue and extraocular muscles are of this type. Cranial nerves III, IV, VI, and XII carry these fibers.
Why is there no special somatic efferent?
These include the skeletal muscles of the TONGUE and ORBIT (ie, ocular muscles.) Thus this component, SSE, is essentially THE SAME as GSE in spinal nerves; and since it is the same, it gets no separate designation of its own.)
What is the difference between somatic and visceral?
The Difference Between Somatic and Visceral Pain. Somatic pain and visceral pain are two distinct types of pain, and they feel different. Somatic pain comes from the skin. muscles, and soft tissues, while visceral pain comes from the internal organs.
What is a cranial nerve nuclei?
The cranial nerve nuclei are a series of bilateral grey matter motor and sensory nuclei located in the midbrain, pons and medulla that are the collections of afferent and efferent cell bodies for many of the cranial nerves. Some nuclei are small and contribute to a single cranial nerve, such as some of th motor nuclei.
How many cranial nerve nuclei are there?
The sixteen cranial nerve nuclei can be most easily remembered if they are assembled into functional groups and anatomical location (Table A3—from Purves et al., Neuroscience, 6th Ed.; Figure 4.2).
What is the nucleus Ambiguus?
The nucleus ambiguus is the common nucleus of the efferent fibers for glossopharyngeal (CN IX) and vagus (CN X) nerves. The nucleus ambiguus provides fibers that innervate the somatic muscles of the pharynx, larynx, and soft palate.
What is nucleus tractus Solitarius?
The nucleus of the solitary tract, also known as the nucleus tractus solitarius (pl. solitarii) is a pair of cell bodies found in the brainstem. Nucleus of the solitary tract has been described by many as the primary visceral sensory relay station within the brain.
Which nucleus receives impulses of taste?
gustatory nucleus
Where is the mesencephalic nucleus located?
midbrain
Where is medulla oblongata?
Your medulla oblongata is located at the base of your brain, where the brain stem connects the brain to your spinal cord. It plays an essential role in passing messages between your spinal cord and brain. It’s also essential for regulating your cardiovascular and respiratory systems.