Exam 6: The Peripheral Nervous System: Afferent Division; Special Senses

Match the types of muscles, labelled a. through g., with the properties in question. (Options may be used more than once or not at all.) a.skeletal muscle only b.single-unit smooth muscle only c.cardiac muscle only d.skeletal muscle and cardiac muscle e.skeletal muscle and single-unit smooth muscle f.single-unit smooth muscle and cardiac muscle g.skeletal, single-unit smooth, and cardiac muscles -behave(s) as a functional syncytium

The functional unit of skeletal muscle is the myofibril.

A single muscle cell is known as a myofibril.

All smooth muscle is myogenic.

Anaerobic exercise is endurance-type exercise.

Describe how summations occur in muscle cells.

The shorter a muscle fibre is before the onset of a contraction, the greater the force that can be developed upon the subsequent contraction because the thin filaments are already partially slid inward.

The skeletal muscle shortens during concentric, isotonic contraction.

Match the muscle fibre types, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) a.slow-oxidative fibre b.fast-oxidative fibre c.fast-glycolytic fibre -requires a constant supply of oxygen

Match the muscle-tension receptors, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) a.muscle spindle b.Golgi tendon organ c.both of these receptors -detects change in muscle tension

Which of these statements correctly describes a functional syncytium?

Which of the following events happens during excitation-contraction coupling?

Which of the following directly blocks cross bridge interaction between actin and myosin in skeletal muscle?

Skeletal muscles are stimulated to contract by release of the neurotransmitter ____________________.

Match the muscle-tension receptors, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) a.muscle spindle b.Golgi tendon organ c.both of these receptors -monitors change in muscle length

A skeletal muscle produces motion by pulling the origin toward its insertion.

Which of these statements correctly describes the length-tension relationship?

Match the muscle fibre types, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) a.slow-oxidative fibre b.fast-oxidative fibre c.fast-glycolytic fibre -has the largest diameter

Muscle fibres are some of the longest cells in the body. How long can they be?

Match the skeletal muscle proteins, labelled a. through f., with the descriptions. (Options may be used more than once or not at all.) a.actin only b.myosin only c.actin and myosin d.troponin-tropomyosin complex e.actin, troponin, and tropomyosin f.actin, myosin, troponin, and tropomyosin -regulatory protein(s)