What is the disorder defined by the location of the urethral orifice on the underside of the penis?

A. It is the one for which capillary membranes become extra permeable during inflammation, allowing certain proteins to move to tissues. This describes the interstitial fluid, not the intracellular fluid (ICF). During inflammation, the capillary membranes allow proteins to move into the tissues, which is part of the extracellular fluid (ECF) compartment.

B. It is located within the bloodstream. This describes the intravascular fluid, which is a part of the extracellular fluid (ECF) compartment, not the intracellular fluid (ICF).

C. It is located inside the cells. The intracellular fluid (ICF) is the fluid contained within the cells of the body, making up about two-thirds of the total body water.

D. It is the one containing hormones intended to balance red blood cell count. Hormones related to red blood cell production, such as erythropoietin, are not specific to the intracellular fluid compartment. This statement does not accurately describe the ICF.

A. Loss of voluntary movement: Huntington's disease is a neurodegenerative disorder characterized by the progressive loss of voluntary movement, leading to difficulties in performing daily activities.

B. Numbness: Numbness is not typically associated with Huntington's disease, which primarily affects movement and cognitive function.

C. Constipation: While constipation can occur in many conditions, it is not a hallmark symptom of Huntington's disease.

D. Urinary dysfunction: Urinary dysfunction is not a primary symptom of Huntington's disease.

E. Visual dysfunction: Visual dysfunction is not typically associated with Huntington's disease.

F. Dyskinesia: Dyskinesia, or involuntary, erratic movements, is a hallmark symptom of Huntington's disease. It is one of the main motor symptoms observed in affected individuals.