Stereocilia (all are the same height)

are present in all hair cells

have cores of actin filaments coated with isoforms

of myosin 

increase progressively in height; along the perpendicular axis

TLS Online TPP Program

#Id: 2652

#Unit 7. System Physiology – Animal

The ascending limb, both the thin & the thick segments

is virtually impermeable to water, a characteristic that is important for concentrating the urine.

TLS Online TPP Program

#Id: 2653

#Unit 7. System Physiology – Animal

The thin segment of the ascending limb has a much lower reabsorptive capacity than does the thick segment.

TLS Online TPP Program

#Id: 2654

#Unit 7. System Physiology – Animal

Thick segment of the ascending limb of loop of Henle, has thick epithelial cells that have high metabolic activity and are capable of active reabsorption of sodium, chloride, and potassium

TLS Online TPP Program

#Id: 2655

#Unit 7. System Physiology – Animal

About 25 percent of the filtered loads of sodium, chloride, and potassium are reabsorbed in thick segment of the ascending limb of loop of Henle

TLS Online TPP Program

#Id: 2656

#Unit 7. System Physiology – Animal

An important component of solute reabsorption in the thick ascending limb is the sodium-potassium ATPase pump in the epithelial cell basolateral membranes.

TLS Online TPP Program

#Id: 2657

#Unit 7. System Physiology – Animal

In the thick segment of the ascending loop of Henle  reabsorption mechanism is load-dependent.