ANAT 100 Block Theory 1 Questions with All Correct Answers

ANAT 100 Block Theory 1 Questions with All Correct Answers Which of the following cells is NOT a fixed cell of connective tissue? a. adipocyte b. mast c. mesenchymal d. fibroblast - Answer-b. mast Tendonitis is the irritation and inflammation of connective tissue surrounding a tendon. Explain how a tendon functions and how this condition might affect the function of a tendon? - Answer--Tendons are bands of fibrous connective tissue that attach bones and muscles -Less mobile site of attachment is the origin and more mobile site of attachment is the insertion -When muscles contract to move bone, it is the tendon that actually functions in moving this bone -Tendons are generally able to withstand significant tension -Tendonitis may result in the limitation of movement (stiffness, rigidity of the joint) as the tendon can no longer move the bone as effectively as before as a result of the inflammation and irritation -Tendonitis may also cause acute pain in the area of irritation -Tendonitis will prevent the tendon from functioning properly, so muscle weakness may develop as a result The secondary curvatures of the vertebral column develop months after birth and with their development they shift the weight of the trunk over the legs. How is this shift in center of gravity achieved? - Answer--The secondary curvatures develop as an individual grows and begins moving -The cervical curve develops once an individual is able to hold up their head and further develops once they are able to sit straight -The lumbar curve develops when the child begins walking and supporting their body weight completely -At this point center of gravity is shifted over the pelvis Which muscles help with the initial breakdown of food? a. muscles of facial expression b. muscles of mastication c. muscles that move the tongue d. muscles of the pharynx - Answer-b. muscles of mastication An athlete is most likely to sprain their ankle through which movement? a. flexion b. extension c. eversion d. inversion - Answer-d. inversion What is the letter associated with the dark bands in a sarcomere? a. A b. Z c. H d. I - Answer-a. A In one limb, how many more carpal bones are there than tarsal bones? a. 1 b. 0 c. 3 d. 2 - Answer-a. 1 Which muscle forms the traditional "six-pack" of a well-toned abdominal wall? a. external oblige b. internal oblique c. transversus abdominus d. rectus abdominis - Answer-d. rectus abdominus Pronation is accomplished at the a. shoulder b. radius and ulna c. elbow d. wrist - Answer-b. radius and ulna Subcutaneous fat (the fatty layer just beneath the skin) is also known as a. the lamina propriea b. reticular tissue c. adipose tissue d. mesenchyme - Answer-c. adipose tissue A ___ plane cuts perpendicularly along the long axis of the body or organ a. coronal b. transverse c. frontal d. sagittal - Answer-b. transverse Pseudostratified ciliated columnar epithelium would be found lining a. portions of the respiratory system b. ducts of sweat glands c. large kidney tubules d. the larger vessels - Answer-a. portions of the respiratory system The neurons that stimulate muscle contraction are called ___ neurons a. contractile b. sensory c. association d. motor - Answer-d. motor Occasionally the sternocleidomastoid muscle on one side of the neck is injured when a baby's head is pulled excessively during a difficult birth, tearing its fibers. Explain the consequences of this injury - Answer- All connective tissues have three features in common. They are a. cells, protein fibers, and mucus b. cells, a liquid portion, and protein fibers c. cells, protein fibers, and ground substance d. protein fibers, a liquid portion, and ground substance - Answer-c. cells, protein fibers, and ground substance Muscle fiber contraction results from a. the sarcomere relaxes and expands b. Interaction of the thick and thin filaments in each sarcomere c. inflation of the muscle fibers with blood d. release of tension from the thick and thin filaments - Answer-b. interaction of the thick and thin filaments in each sarcomere Which type of connective tissue is found in the deep portion of the dermis providing strength to the skin? a. cartilage b. adipose c. areolar d. dense irregular - Answer-d. dense irregular which feature is NOT characteristic of epithelial tissue? a. large amount of extracellular matrix b. cells connected to each other by intercellular junctions c. attachment to a basement membrane d. high regeneration capacity - Answer-a. large amount of extracellular matrix Which of the following are functions of synovial fluid? a. nutrition for the cartilage within a joint b. more than one of these answers c. prevention of infection within a joint d. lubrication of joint structure - Answer-b. more than one of these answers In knee extension the patella sits anterior to the distal end of what bone? a. tibia b. fibula c. femur d. ulna - Answer-c. femur The lateral condyle of the femur is analogous to what bony feature of the humerus? a. coronoid fossa b. trochlea c. radial fossa d. capitulum - Answer-d. capitulum Which of the following muscles only compresses the abdomen? a. Rectus abdominis b. diaphragm c. internal intercostal d. transverse abdominis - Answer-d. transverse abdominis