zoo 3731 test pt 2

The head of the femur articulates with the: -pubic symphysis -obturator foramen -glenoid fossa -acetabulum

acetabulum

The ______________ muscle, named for its two bellies, opens the mouth. -sternohyoid -stylohyoid -mylohyoid -digastric -omohyoid

digastric

Which of the following muscles is the prime mover in spitting out a mouthful of liquid? -buccinator -platysma -risorius -masseter -zygomaticus

buccinator

The word _______ in a muscle name indicates a function related to the head. -cervicis -hallucis -carpi -teres -capitis

capitis

The synovial joint between the atlas and axis is a: -ball-and-socket joint -pivot joint -hinge joint -ellipsoidal joint

pivot joint

Which bone has the linea aspera as one of the bone features? -fibula -femur -tibia -fibia

femur

Which of the following muscles form the Achille's Tendon? gastrocnemius and plantaris plantaris and soleus plantaris and popliteus tibialis posterior and gastrocnemius gastrocnemius and soleus

gastrocnemius and soleus

What Bone FEATURE does Gluteus Maximus insert on? A.) Greater Trochanter A.) Linea Aspera A.) Medial Epicondyle A.) Intertrochanteric line A.) Gluteal Tuberosity

gluteal tuberosity

Which three bones form the coxal bone? =pelvis, pubic symphysis, sacrum -ischium, ilium, pubis -ilium, sacrum, ischium -sacrum, pelvis, ilium

ischium, ilium, pubis

An amphiarthrosis is defined as a: -joint that is freely movable -joint that allows some motion -joint that allows no motion -joint with multiple axes of motion

joint that allows some motion

Which muscle extends the torso? -spinalis -external oblique -psoas major -splenius capitis

spinalis

Which bone feature of the humerus is always articulating with the radius independent if the forearm is flexed or extended -radial notch -radial fossa -radial year -capitulum -ulnar notch

Capitulum

The pubic symphysis unites which two bones? -right and left ischium -right and left ilium -right and left pubis -ilium to the sacrum

right and left pubis

Amanda has dimples. Dimples are an inheritable trait caused by a shortened muscle which leads to a small depression in the flesh, either one that exists permanently or one that forms in the cheeks when one smiles. Which muscle causes this effect? -zygomaticus major -depressor anguli oris -levator labii superioris -orbicularis oris -masseter

zygomaticus major

Which of the following bone(s) articulates with the femur? -tibia and fibula -tibia -tibula and fibia -fibula

tibia

Together the quadriceps femoris will work to -extend the knee -flex the knee -extend the thigh -flex the thigh -lateral rotate the thigh

Extend the knee

While driving to school to take an anatomy test, Peter gets in a car accident and breaks the clavicle on the steering wheel. Which of the following muscles is most likely damaged in this injury -mylohyoid -omohyoid -digastric -sternohyoid -stylohyoid

Omohyoid

Where is huge amounts of ca+2 stored prior to muscle contraction -sarcolemma -sarcoplasm -t tubules -sarcoplasmic retoculum -synaptic vesicles

Sarcoplasmic reticulum

The axons of the peripheral nervous system contain myelin sheaths that are made by: Schwann cells neurons secretory vesicles oligodendrocytes astrocytes

Schwann cells

What type of epithelium makes up the endothelium of blood vessels -transitional -stratified cuboidal -simp,e squamous -pseduostrqtified columnar -simple columnar

Simple squamous

Which carpal bone, based on its location, would articulate with the metacarpal of the thumb? -triquetrum -pisiform -trapezium -capitate -scaphoid

trapezium

In addition to flexing the knee, the sartorius: -extends and medially rotates the hip joint -adducts the thigh -extends and laterally rotates the hip joint -flexes and laterally rotates the hip joint

flexes and laterally rotates the hip joint

During the cross-bridge cycle, after the calcium binds to troponin, what happens next? -Calcium is released by the sarcoplasmic reticulum -ATP binds to the myosin head and allows it to bind to actin -ATP binds to the myosin head and releases it from actin -Tropomyosin rolls away from actin, exposing the active binding sites

Tropomyosin rolls away from actin, exposing the active binding sites

What is the anatomical name for the bones that make up the distal portion of the wrist joint? -metatarsals -metacarpals -carpals -tarsals -radius and ulna

carpals

The bones that form the pectoral girdle are the: -clavicle and sternum -ilium, ischium, pubis -clavicle and scapula -scapula and humerus -humerus, radius, ulna

clavicle and scapula

Which protein covers the active sites of the thin filaments, and therefore prevents muscle contraction? -troponin -actin tropomyosin -myosin

tropomyosin

Which section of the sarcoma remains only contains thin filaments -m line -I band - z disc -a band -h zone

I band

Muscles of the pectoral girdle and upper limbs are organized into all of the following groups except -muscles that move the forearm -muscles that move the arm -muscles that move the glenohumeral joint -muscles that move the pectoral girdle

Muscles that move the pectoral girdle

Which of the following describes a hinge joint correctly? -the convex articular surface of one bone fits into a concave articular surface of another bone -the flat articular surfaces of two bones glide past one another -one bone rotates around another bone -the rounded, ball-like end of one bone fits into a concave depression of another bone

the convex articular surface of one bone fits into a concave articular surface of another bone

When the membrane potential of a cell membranebecomes more positive than the resting potential, one can say that the membrane has become: -hypopolarized -superpolarized -depolarized -hyperpolarized

depolarized

Which bone feature is most proximal when compared to the other answers? -styloid process of radius -head of the humerus -head of the ulna -head of the radius -styloid process of ulna

head of the humerus

What joint is considered biaxial? -shoulder -interphalangeal joints -hip -metatarso-phalangeal joints -knee

metatarso-phalangeal joints

Collectively as a group, the muscles of the anterior thigh that work together to extend the leg are referred to as: -quadriceps femoris -rectus femoris -hamstrings -gluteus maximus

quadriceps femoris

Which torso muscles are involved in lateral flexion of the abdomen? -internal oblique, external oblique, psoas major -longissimus, iliocostalis, spinalis -rectus abdominis, psoas major -iliocostalis, longissimus, internal oblique, external oblique -external oblique, internal oblique, quadratus lumborum

External oblique internal oblique quadratus lumborum

Which muscles could cause dorsiflexion -gastrocnemius soleus tibialis posterior -tibialis anterior and plantar is -flexor digitorum and extensor hallucis longus -plantaris popliteal and tibialis anterior -extensor digitorum tibilias anterior and extensor digitorum lingus

Gastrocnemius soleus tibialis posterior

Which of the following muscles is used to look to the right with the left eye -superior rectus -superior oblique -medial rectus -inferior rectus -lateral rectus

Medial rectus

In regards to the arrangement of fascicles which of the following is correctly matched -parallel triceps brachii -unipennate flexor digitorum longus -bipennate biceps femoris -wrapping pronator -multipennate deltoid

Multipennate deltoid

Which of the following muscle rules is correct? -muscles always cross at least one joint -insertion is always proximal -muscles can have an origin and an insertion on the same bone -muscles always pull towards the insertions -muscles in the same compartment will probably have different function

Muscles always cross at least one joint

Which statement about the intercostals is correct -the internal, upon contraction, creates a wider space between the ribs -the external originates on the superior border of the rib above -the internal depresses the ribs when it contracts -the internal inserts on the inferior border of the rib below -the internal is superficial to the external intercostals

The internal depresses the ribs when it contracts

The afferent division of the PNS __________, while the efferent division of the PNS ______________. -brings sensory information to the CNS; carries motor commands from CNS to effectors. -brings motor commands from CNS to effectors; brings sensory information to the CNS. -brings sensory information to the CNS; carries motor commands from CNS to the thalamus. -brings motor information to the CNS; carries sensory commands from CNS to muscles and glands.

brings sensory information to the CNS; carries motor commands from CNS to effectors

Which two bone features compose the condyle of the humerus? -olecranon and trochlea notch -radial and ulnar notches -medial and lateral epycondyles -capitulum and trochlea -radial and ulnar heads

capitulum and trochlea

Which protein forms the thick filaments of a skeletal muscle fiber? -tropomyosin -actin -myosin -troponin

myosin

__________ are found only in the peripheral nervous system. -astrocytes -ependymal cells -oligodendrocytes -satellite cells -microglia

satellite cells

Flexion at knee involves which muscles? -semimembranosus, semitendinosus, biceps femoris, sartorius -gracilis, iliopsoas, sartorius, semimembranosus -rectus femoris, vastus lateralis, vastus medialis -adductor longus, adductor magnus, gracilis

semimembranosus, semitendinosus, biceps femoris, sartorius