Semester 2 - Final Examination

What are the defining characteristics of a trigger point?

• Pressure creates shooting pain, decreases muscle tension, a warm sensation in the tissue

• Compression causes muscle twitch, no distinct nodule, always in a taut band

• Located in a taut band, palpable nodule, compression creates a radiating pattern of pain

• No palpable nodule, no muscle twitches or radiating pain

A sarcomere of skeletal muscle is small unit of bundled:

• myofibers

• myofibrils

• myofilaments

• none of the above

What connective element of skeletal muscle is described as the tenoperiosteal junction?

• The transitional tissue zone between the muscle and tendon

• The fibrous connective tissue between the periosteum and tendon

• The broad sheet of tissue that surrounds the muscle as a whole

• The point where epi-, peri-, and endomysium blend into a single fibrous cord

Which of the following is the most accurate description of a motor unit?

• 1 sensory neuron + 1 motor neuron

• multiple motor neurons + multiple muscle fibers

• 1 motor neuron + multiple sarcomeres

• 1 motor neuron + multiple muscle fibers

What are the functions of cerebrospinal fluid?

• chemical defense between the blood and brain, excrete waste, temperature regulation

• shock absorption, nutrition, physical barrier between pathogens in blood and the CNS organs

• forms the blood-brain barrier, serves as the plasma for all the blood vessels in the brain

• none of the above

Pacinian and Ruffini corpuscles as well as the hair root plexus of skin are examples of what type of cutaneous receptor?

• thermoreceptors

• tactile receptors

• nociceptors

• none of the above

Which of these connective tissue components of skeletal muscle is classified as organized fibrous?

• Tendon

• Epimysium

• Endomysium

• Perimysium

Which of these accessory organs has primary functions of protective and sensory organs?

• sudoriferous gland

• hair

• nails

• sebaceous gland

What layer of skin contains melanocytes?

• subcutaneous fibrous

• epidermis

• dermis

• hypodermis

What is the definition of threshold stimulus?

• The maximum amount of stimulus a muscle can tolerate

• The level of stimulus required for muscle recruitment

• The minimal amount of stimulus required to generate a contraction

• none of the above