The main subcortical limbic brain regions implicated in depression are the amygdala, hippocampus, and the dorsomedial thalamus. Both structural and functional abnormalities in these areas have been found in depression. Decreased hippocampal volumes (10, 25) have been noted in subjects with depression.
What is a depression called in anatomy?
Anatomical terminology In anatomy, a fossa (/ˈfɒsə/; plural fossae (/ˈfɒsiː/ or /ˈfɒsaɪ/); from the Latin “fossa”, ditch or trench) is a depression or hollow, usually in a bone, such as the hypophyseal fossa (the depression in the sphenoid bone).
What type of bone marking is a shallow depression?
Fossa – A shallow depression in the bone surface.
What happens to the brain during depression?
There’s growing evidence that several parts of the brain shrink in people with depression. Specifically, these areas lose gray matter volume (GMV). That’s tissue with a lot of brain cells. GMV loss seems to be higher in people who have regular or ongoing depression with serious symptoms.
What are 4 major causes of depression?
Depression is not a condition that has one specific cause. It can happen for many different reasons and have many triggers. Usually, depression doesn’t work quickly or suddenly….The four major causes of depression are:
- Family history.
- Illness and health issues.
- Medication, drugs, and alcohol.
- Personality.
What actually causes depression?
No one knows exactly what causes it, but it can happen for a variety of reasons. Some people have depression during a serious medical illness. Others may have depression with life changes such as a move or the death of a loved one. Still others have a family history of depression.
What is a simple definition of depression?
Depression causes feelings of sadness and/or a loss of interest in activities you once enjoyed. It can lead to a variety of emotional and physical problems and can decrease your ability to function at work and at home.
Which is a shallow depression?
A shallow depression that takes part in joint formation is called a fossa. A fossa is a type of bone marking called an articulation.
What are bone depressions?
Depressions: Low areas, indentations on bone. Fossa – A deep pit or depression. Examples: Fossa of the Hip, Olecranon fossa of humerus. Fontanel – Soft spot in skull, membraneous.
What happens to your body during depression?
Depression can cause headaches, chronic body aches, and pain that may not respond to medication. It’s also sometimes an effect of certain neurological diseases, such as Alzheimer’s disease, epilepsy, and multiple sclerosis.
What are the different levels of depression?
Types of Depression
- Major Depression.
- Persistent Depressive Disorder.
- Bipolar Disorder.
- Seasonal Affective Disorder (SAD)
- Psychotic Depression.
- Peripartum (Postpartum) Depression.
- Premenstrual Dysphoric Disorder (PMDD)
- ‘Situational’ Depression.
What is the main cause of depression?
Research suggests that depression doesn’t spring from simply having too much or too little of certain brain chemicals. Rather, there are many possible causes of depression, including faulty mood regulation by the brain, genetic vulnerability, stressful life events, medications, and medical problems.
What does dorsal mean in anatomy?
As opposed to the ventral, or front, of the structure. Some of the dorsal surfaces of the body are the back, buttocks, calves, and the knuckle side of the hand. For a more complete listing of terms used in medicine for spatial orientation, please see the entry to “Anatomic Orientation Terms”.
What are the dorsal and ventral body cavities?
The dorsal and ventral body cavities, two of the largest body compartments in humans, are anatomical spaces that contain various organs and other structures. The dorsal cavity lies close to the spine in the posterior portion of the body.
Where is the dorsal raphe nucleus located?
The dorsal raphe nucleus (DRN) is a heterogeneous brainstem nucleus located in the midbrain and pons. Via widespread projections, which target a multitude of brain areas, its neurons utilize many transmitters to control various physiological functions, including learning, memory and affect.
What does posterior mean in medical terms?
[dor´sal] directed toward or situated on the back surface, as opposed to ventral. See also posterior. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc.
