ANAT 100 - BLOCK THEORY 1 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026

ANAT 100 - BLOCK THEORY 1 EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026 In knee extension the patella sits anterior to the distal end of what bone? a. tibia b. fibula c. femur d. ulna - Answers 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 - Answers d. capitulum Which of the following muscles only compresses the abdomen? a. Rectus abdominis b. diaphragm c. internal intercostal d. transverse abdominis - Answers d. transverse abdominis Which of the following defines "superficial"? a. Toward the end of an appendage b. close to the attachment of the appendage to the trunk c. on the inside d. on the outside - Answers d. on the outside These muscles elevate the ribs, facilitate inhalation, and attach adjacent ribs: a. internal intercostals b. transversus thoracis c. external intercostals d. diaphragm - Answers c. external intercostals Which structure is located immediately lateral to the foramen magnum? a. occipital condyles b. styloid process c. external ear d. mastoid process - Answers a. occipital condyles What is the smiling muscle? a. zygomaticus b. platysma c. orbicularis iris d. frontalis - Answers a. zygomaticus What is the sacrolemma of a skeletal muscle fiber? a. nucleus b. endoplasmic reticulum c. cell membrane d. cytoplasma - Answers c. cell membrane Which of the basic tissues is avascular (lacks blood vessels)? a. muscle tissue b. epithelial tissue c. nervous tissue d. connective tissue - Answers b. epithelial tissue The external oblique muscle fibers run the same way as the a. internal intercostals b. external intercostals c. transversus abdominis d. innermost intercostals - Answers b. external intercostals Which bones are separated by the coronal structure? a. occipital and temporal b. frontal and parietal c. parietal and parietal d. occipital and parietal - Answers b. frontal and parietal Which best describes the anatomical position? a. palms are facing backward b. bosy is prone c. feet are flat on the floor d. thumbs point towards the body - Answers c. feet are flat on the floor What is the most common type of cartilage? a. ligamentous b. elastic c. hyaline d. fibrocartilage - Answers c. hyaline When a sarcomere contracts, which of the following bands get smaller? a. M b. I c. Z d. A - Answers b. I Muscle fibers do not cross the anterior middle region of the body wall because of the presence of the a. skin b. tendinous inscriptions c. rectus sheath d. linea alba - Answers d. linea alba What connective tissue component forms the structural framework of the spleen and liver? a. ground substance b. elastic fibers c. reticular fibers d. collagen fibers - Answers c. reticular fibers Pads between the spinal vertebrae consist of what kind of structural material? a. dense regular connective tissue b. elastic cartilage c. dense irregular connective tissue d. fibrocartilage - Answers d. fibrocartilage Considering the microscopic anatomy of muscle, explain the role of the "A" band in the production of tension in a skeletal muscle? - Answers A-band consists of thin (actin) and thick (myosin) filaments. The actin filaments pass between the myosin filaments. The interaction between the thin and thick filaments occurs to form cross-bridges between the myosin head and actin filament pulling the thin filaments closer to the M-line and shortening the sarcomere. Contraction thus occurs in this regard and tension is generated. How many pieces of floating ribs are there? a. 4 b. 3 c. 2 d. 1 - Answers c. 2 Which of the following cells is NOT a fixed cell of connective tissue? a. adipocyte b. mast c. mesenchymal d. fibroblast - Answers b. mast Many injuries to the ligaments of the knee occur when the foot is planted (ie. on the ground) with the leg extended rather than flexed. What anatomical facts would account for this? - Answers 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? - Answers -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? - Answers -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 - Answers b. muscles of mastication An athlete is most likely to sprain their ankle through which movement? a. flexion b. extension c. eversion d. inversion - Answers d. inversion What is the letter associated with the dark bands in a sarcomere? a. A b. Z c. H d. I - Answers a. A In one limb, how many more carpal bones are there than tarsal bones? a. 1 b. 0 c. 3 d. 2 - Answers 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 - Answers d. rectus abdominus Pronation is accomplished at the a. shoulder b. radius and ulna c. elbow d. wrist - Answers 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 - Answers c. adipose tissue