Search Results

Muscle Twitch and Muscle Tension - Motor unit size and force

By: HWC, Views: 7964

• A motor unit is a group of muscle cells controlled by a single neuron. • A stimulus of sufficient intensity will cause all the cells in the motor unit to contract. • A single contraction, caused by a single action potential, is called a muscle twitch. • Latent period: A brief per...

The Lac Operon in E. Coli

By: Administrator, Views: 11789

The lac operon (lactose operon) is an operon required for the transport and metabolism of lactose in Escherichia coli and many other enteric bacteria. Although glucose is the preferred carbon source for most bacteria, the lac operon allows for the effective digestion of lactose when glucose is no...

Pressure volume relationships - Normal inspiration and expiration

By: HWC, Views: 7633

• Changing the relative pressure in the compartments can control the direction of airflow between compartments. • In a closed compartment, pressure and volume are inversely related. • Reducing the volume will increase the pressure. • Increasing the volume will decrease the pressure. ...

Premenstrual Syndrome

By: Administrator, Views: 10930

Premenstrual syndrome (PMS) refers to physical and emotional symptoms that occur in the one to two weeks before a woman's period. Symptoms often vary between women and resolve around the start of bleeding. Common symptoms include acne, tender breasts, bloating, feeling tired, irritability, and mo...

Male Reproductive System - Testosterone

By: HWC, Views: 8330

• Under the influence of FSH and testosterone, Sertoli cells produce androgen-binding protein (ABP) that binds to testosterone and maintains high levels of the hormone near spermatogenic cells. • Testosterone stimulates the final stages of spermatogenesis. • In addition, testosterone is...

What is Cholesterols? Introduction to Lipoproteins

By: HWC, Views: 6706

✔ https://HomeworkClinic.com ✔ https://Videos.HomeworkClinic.com ✔ Ask questions here: https://HomeworkClinic.com/Ask Follow us: ▶ Facebook: https://www.facebook.com/HomeworkClinic ▶ Review Us: https://trustpilot.com/review/homeworkclinic.com Cholesterol is a type of fat fo...

Hyperglycemia Animation

By: Administrator, Views: 12282

Hyperglycemia means high (hyper) glucose (gly) in the blood (emia). Your body needs glucose to properly function. Your cells rely on glucose for energy. Hyperglycemia is a defining characteristic of diabetes—when the blood glucose level is too high because the body isn't properly using or doesn...

Studying the Left and Right Brain Independently

By: Administrator, Views: 10976

A seizure, technically known as an epileptic seizure, is a period of symptoms due to abnormally excessive or synchronous neuronal activity in the brain. Outward effects vary from uncontrolled shaking movements involving much of the body with loss of consciousness (tonic-clonic seizure), to shakin...

Dissociative Disorders (Part 1)

By: Administrator, Views: 10667

Dissociative disorders (DD) are conditions that involve disruptions or breakdowns of memory, awareness, identity, or perception. People with dissociative disorders use dissociation as a defense mechanism, pathologically and involuntarily. Some dissociative disorders are triggered by psychological...