resting length

Examples of resting length in the following topics:

• Force of Muscle Contraction

  • The force a muscle generates is dependent on its length and shortening velocity.
  • The force a muscle generates is dependent on the length of the muscle and its shortening velocity.
  • Skeletal muscles are attached to bones via tendons that maintain the muscle under a constant level of stretch called the resting length.
  • If this attachment was removed, for example if the bicep was detached from the scapula or radius, the muscle would shorten in length.
  • In mammals, there is a strong overlap between the optimum and actual resting length of sarcomeres.

• Fifth Through Eighth Weeks of Development

  • During weeks six and seven, the embryo grows from four millimeters in length to nine millimeters and begins to curve into a C-shape .
  • Arm and leg buds, which will grow into the full limbs over the rest of development, become visible.
  • By week eight of gestation, the embryo measures 13 millimeters in length.

• Trachea

  • It typically has an inner diameter of about 25.4 millimeters (1.00 in) and a length of about 10 to 16 centimeters.
  • Extending downward throughout the length of the tube are about fifteen to 20 C-shaped cartilaginous rings that reinforce the outer structure and shape of the trachea—the open part of each C-shaped ring reveals a membranous wall on the inside of the trachea.
  • This is the trachea in relation to the rest of the respiratory system.

• Anatomy of the Liver and Gallbladder

  • It is located in the right upper quadrant of the abdominal cavity, resting just below the diaphragm.
  • In adults, the gallbladder measures approximately eight centimeters (3.1 in) in length and four centimeters (1.6 in) in diameter when fully distended.

• Ascending Aorta

  • The ascending aorta is a portion of the aorta beginning at the upper part of the base of the left ventricle, on a level with the lower border of the third costal cartilage behind the left half of the sternum; it passes diagonally upward, forward, and to the right, in the direction of the heart's axis, as high as the upper border of the second right costal cartilage its total length is about five cm.
  • Posteriorly, it rests upon the left atrium and right pulmonary artery.

• Urethra

  • Semen does not flow through the bladder or the rest of the urinary tract, instead it is a fluid made of sperm cells and other fluids that passes through a few different glands from the testes to the urethra through the va defrens.
  • Aside from semen, and the male urethra's greater length, it is structurally similar to the female urethra.

• Velocity and Duration of Muscle Contraction

  • The force-velocity relationship in muscle relates the speed at which a muscle changes length to the force of this contraction and the resultant power output (force x velocity = power).
  • Though they have high velocity, they begin resting before reaching peak force.

• Interactions of Skeletal Muscles

  • Skeletal muscle contractions can be grouped based on the length and frequency of contraction.
  • At peak contraction the muscle relaxes and returns to its resting position.
  • After contraction the muscle relaxes back to a resting level of tension.

• Internal Anatomy of the Kidneys

  • The renal medulla contains the majority of the length of nephrons, the main functional component of the kidney that filters fluid from blood.
  • The renal pelvis connects the kidney with the circulatory and nervous systems from the rest of the body.
  • The renal pelvis connects the kidney to the rest of the body.

• Resting Membrane Potentials

  • The potential difference in a resting neuron is called the resting membrane potential.
  • The potential difference in a resting neuron is called the resting membrane potential.
  • The resting membrane potential exists only across the membrane.
  • These  interactions that generate the resting potential are modeled by the Goldman equation .
  • Consequently, the resting potential is usually close to the potassium reversal potential.