olivary body

(noun)

Located on the anterior surface of the medulla, lateral to the pyramid.

Related Terms

(noun)

Either of a pair of prominent oval structures in the medulla oblongata containing the olivary nuclei. These structures are involved in cerebellar motor learning and the perception of sound.

Related Terms

Examples of olivary body in the following topics:

  • Hypoglossal (XII) Nerve

    • The hypoglossal nerve emerges from the medulla oblongata in the preolivary sulcus where it separates the olive (olivary body) and the pyramid (medullary pyramid).

  • Medulla Oblongata

    • This causes a syndrome called medial medullary syndrome, a type of alternating hemiplegia characterized by recurrent episodes of paralysis on one side of the body.
    • The region between the anterolateral and posterolateral sulcus in the upper part of the medulla is marked by a swelling known as the olivary body, caused by a large mass of gray matter known as the inferior olivary nucleus.

  • Functions of the Cerebellum

    • A module consists of a small cluster of neurons in the inferior olivary nucleus, a set of long narrow strips of Purkinje cells in the cerebellar cortex (microzones), and a small cluster of neurons in one of the deep cerebellar nuclei.

  • Functions of the Cerebellum in Integrating Movements

    • A module (a multizonal microcompartment in the terminology of Apps and Garwicz) consists of a small cluster of neurons in the inferior olivary nucleus, a set of long narrow strips of Purkinje cells in the cerebellar cortex (microzones), and a small cluster of neurons in one of the deep cerebellar nuclei.

  • Water Content in the Body

    • In physiology, body water is the water content of the human body.
    • It makes up a significant percentage of total body composition.
    • The water in the body is distributed among various fluid compartments that are interspersed in the various cavities of the body through different tissue types.
    • Body water is regulated largely by the renal and neuro-endocrine systems.
    • There are many clinical methods to determine body water.

  • Body Planes and Sections

    • Body planes are hypothetical geometric planes used to divide the body into sections.
    • The sagittal plane (lateral or Y-Z plane) divides the body into sinister and dexter (left and right) sides.
    • It is typically a horizontal plane through the center of the body and is parallel to the ground.
    • Body planes are used to describe anatomical motion in the X-Y-Z coordinate system that the body moves through.
    • Anatomical change during embryological development is also described and measured with body planes.

  • Tissues in Levels of Organization

    • The human body is organized at several levels of scale that can each be examined.
    • The human body has many levels of structural organization.
    • Each tissue type has a characteristic role in the body:
    • Each organ is a specialized functional center responsible for a specific function of the body.
    • List the various levels of structural organization that make up the human body

  • Thermoregulation

    • If the body must cool down, the body vasodilates these blood vessels. 
    • This allows for our body to release a lot of body heat through radiation. 
    • The body also thermoregulates via the process of sweating (perspiration).
    • In addition, our body thermoregulates using our hair. 
    • Finally, while technically not a thermoregulatory mechanism, the fat associated with our skin does help insulate our body and therefore increases body temperature as a result.

  • Waste Management in Other Body Systems

    • The liver also plays an important function in the management of body waste.
    • It acts as a detoxification system for the body, processing and neutralizing drugs and toxins.
    • While the liver may breakdown or neutralize waste in a different and safer form for the body, it doesn't directly remove the waste from the body.
    • The lungs are responsible for the removal of gaseous waste from the body.
    • The lungs are responsible for the removal of gaseous waste from the body.

  • Body Cavities

    • Vertebrates have fluid-filled spaces called body cavities that contain the organs.
    • By the broadest definition, a body cavity is any fluid-filled space in a multicellular organism.
    • "The human body cavity," normally refers to the ventral body cavity because it is by far the largest one in volume.
    • The dorsal cavity is a continuous cavity located on the dorsal side of the body.
    • This is the most narrow of all body cavities, sometimes described as threadlike.