HTHS 1110 Final Exam Prep Questions
and All Correct Answers 2025-2026
Updated.
Susie Storrs leaves for a run on a cold day in December. After running a mile she stops because
she feels warm and removes her jacket, tying it around her waist. What function of muscle
tissue makes her feel warm? - Answer thermogenesis
70-80% of the energy used by muscles is lost as: - Answer heat
which description best fits the structure of visceral(smooth) muscle cells - Answer no
striations and one central nucleus
Skeletal muscle contains _______________ while smooth muscle does not. - Answer
sarcomeres
Skeletal muscle and cardiac muscle have _____________ and _____________ while smooth
muscle does not. - Answer sarcoplasmic reticulum; transverse tubules (T tubules)
Muscle cells in cardiac muscle are tightly bound together by desmosomes. In cardiac muscle,
these specialized structures are arranged in regions with multiple, closely-spaced desmosomes
called: - Answer intercalated discs
myofibrils are: - Answer contractile elements of the cell
what is the name of the cytoplasm of the skeletal muscle cell? - Answer sarcoplasm
The ____________ consists of transverse tubules (T tubules) surrounded by sarcoplasmic
reticulum. - Answer triad
Transverse tubules (T tubules) are bordered on each side by ____________. - Answer
sarcoplasmic reticulum
When dense irregular connective tissue wraps a muscle fascicle, it is called the: - Answer
perimysium
in muscles, actin is the name given to the protein making up: - Answer thin filaments
,According to the length-tension relationship, as the zone of overlap between thin and thick
filaments increases beyond optimum: - Answer tension decreases
In muscles, myosin is the name given to the protein making up: - Answer thick filaments
According to the length-tension relationship, as the zone of overlap between thin and thick
filaments decreases beyond optimum: - Answer tension decreases?
Which of the following breaks down acetylcholine present in the synaptic cleft? - Answer
acetylcholinesterase
a motor unit is: - Answer a motor neuron and all of the muscle cells it innervates
if calcium is absent, then: - Answer cross-bridges do not form
_______ are required for the muscle action potential to penetrate deep into a muscle fiber. -
Answer T tubules
A myosin-binding site is found on the _____________ molecule - Answer actin
When muscle contraction occurs: - Answer sarcomeres shorten
When muscle contraction occurs: - Answer Z disks (lines) come closer together
__________ binds to troponin, which moves tropomyosin to expose a myosin-binding site on
actin. - Answer Ca++
Compared to skeletal muscle, cardiac muscle has: - Answer more creatine phosphate
Compared to skeletal muscle, cardiac muscle has: - Answer more mitochondria
Compared to skeletal muscle, cardiac muscle has: - Answer more myoglobin
The extraocular muscles fire in short bursts and contract very strongly. However, they are not
used for long periods of time. Therefore, we expect that they are of which type? - Answer
fast glycolytic
, The attachment of a muscle to the bone it moves (usually distal) is called its: - Answer
insertion
The quadriceps group works to flex the thigh, while the hamstring group works to extend the
thigh. The quadriceps group and the hamstring group are: - Answer antagonists
The gluteus maximus is ______________ than the gluteus minimus. - Answer larger
The rectus abdominis is in the abdomen and the rectus femoris is in the thigh. These muscles
have the same "first name" because they are both: - Answer straight
The insertion of the ________________ is the calcaneal (Achilles) tendon which inserts on the
calcaneus. - Answer gastrocnemius
The insertion of the hamstring group (biceps femoris, semitendinosus, and semimembranosus)
is the: - Answer fibula and tibia
The insertion of the ________________ is the mandible. - Answer masseter
The insertion of the ________________ is the mastoid process of the temporal bone. - Answer
sternocleidomastoid
The insertion of the sternocleidomastoid is the: - Answer temporal bone
Sweat glands, blood vessel, and fat provide which function of the integument? - Answer
thermoregulation
layers of the skin from top to bottom: - Answer epidermis, dermis, hypodermis
(subcutaneous)
The two layers of the skin (integument) are the epidermis and: - Answer dermis
Which layer associated with the integument is made of loose connective tissue and lots of fat? -
Answer subcutaneous
Keratin, lipid, and sebum help provide: - Answer permeability barrier
and All Correct Answers 2025-2026
Updated.
Susie Storrs leaves for a run on a cold day in December. After running a mile she stops because
she feels warm and removes her jacket, tying it around her waist. What function of muscle
tissue makes her feel warm? - Answer thermogenesis
70-80% of the energy used by muscles is lost as: - Answer heat
which description best fits the structure of visceral(smooth) muscle cells - Answer no
striations and one central nucleus
Skeletal muscle contains _______________ while smooth muscle does not. - Answer
sarcomeres
Skeletal muscle and cardiac muscle have _____________ and _____________ while smooth
muscle does not. - Answer sarcoplasmic reticulum; transverse tubules (T tubules)
Muscle cells in cardiac muscle are tightly bound together by desmosomes. In cardiac muscle,
these specialized structures are arranged in regions with multiple, closely-spaced desmosomes
called: - Answer intercalated discs
myofibrils are: - Answer contractile elements of the cell
what is the name of the cytoplasm of the skeletal muscle cell? - Answer sarcoplasm
The ____________ consists of transverse tubules (T tubules) surrounded by sarcoplasmic
reticulum. - Answer triad
Transverse tubules (T tubules) are bordered on each side by ____________. - Answer
sarcoplasmic reticulum
When dense irregular connective tissue wraps a muscle fascicle, it is called the: - Answer
perimysium
in muscles, actin is the name given to the protein making up: - Answer thin filaments
,According to the length-tension relationship, as the zone of overlap between thin and thick
filaments increases beyond optimum: - Answer tension decreases
In muscles, myosin is the name given to the protein making up: - Answer thick filaments
According to the length-tension relationship, as the zone of overlap between thin and thick
filaments decreases beyond optimum: - Answer tension decreases?
Which of the following breaks down acetylcholine present in the synaptic cleft? - Answer
acetylcholinesterase
a motor unit is: - Answer a motor neuron and all of the muscle cells it innervates
if calcium is absent, then: - Answer cross-bridges do not form
_______ are required for the muscle action potential to penetrate deep into a muscle fiber. -
Answer T tubules
A myosin-binding site is found on the _____________ molecule - Answer actin
When muscle contraction occurs: - Answer sarcomeres shorten
When muscle contraction occurs: - Answer Z disks (lines) come closer together
__________ binds to troponin, which moves tropomyosin to expose a myosin-binding site on
actin. - Answer Ca++
Compared to skeletal muscle, cardiac muscle has: - Answer more creatine phosphate
Compared to skeletal muscle, cardiac muscle has: - Answer more mitochondria
Compared to skeletal muscle, cardiac muscle has: - Answer more myoglobin
The extraocular muscles fire in short bursts and contract very strongly. However, they are not
used for long periods of time. Therefore, we expect that they are of which type? - Answer
fast glycolytic
, The attachment of a muscle to the bone it moves (usually distal) is called its: - Answer
insertion
The quadriceps group works to flex the thigh, while the hamstring group works to extend the
thigh. The quadriceps group and the hamstring group are: - Answer antagonists
The gluteus maximus is ______________ than the gluteus minimus. - Answer larger
The rectus abdominis is in the abdomen and the rectus femoris is in the thigh. These muscles
have the same "first name" because they are both: - Answer straight
The insertion of the ________________ is the calcaneal (Achilles) tendon which inserts on the
calcaneus. - Answer gastrocnemius
The insertion of the hamstring group (biceps femoris, semitendinosus, and semimembranosus)
is the: - Answer fibula and tibia
The insertion of the ________________ is the mandible. - Answer masseter
The insertion of the ________________ is the mastoid process of the temporal bone. - Answer
sternocleidomastoid
The insertion of the sternocleidomastoid is the: - Answer temporal bone
Sweat glands, blood vessel, and fat provide which function of the integument? - Answer
thermoregulation
layers of the skin from top to bottom: - Answer epidermis, dermis, hypodermis
(subcutaneous)
The two layers of the skin (integument) are the epidermis and: - Answer dermis
Which layer associated with the integument is made of loose connective tissue and lots of fat? -
Answer subcutaneous
Keratin, lipid, and sebum help provide: - Answer permeability barrier
