Muscular & Muscular & IntegumentaryIntegumentary

SystemsSystems

What is this muscle called?What is this muscle called?

a)a) Gluteus Gluteus maximusmaximus

b)b) QuadricepsQuadricepsc)c) GastrocnemiusGastrocnemius

d)d) Soleus Soleus

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What is this muscle called?What is this muscle called?

a)a) Pectoralis Pectoralis

b)b) DeltoidDeltoid

c)c) TrapeziusTrapezius

d)d) TricepsTriceps

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What is this muscle called?What is this muscle called?

a)a) BicepsBiceps

b)b) TricepsTriceps

c)c) Internal Internal ObliquesObliques

d)d) External External ObliquesObliques

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Functions Functions of the Muscular Systemof the Muscular System

1.1. Muscles are the Muscles are the motorsmotors that that movemove body partsbody parts

a)a) Muscles always Muscles always

pullpull, , they they

never pushnever push

Functions Functions of the Muscular Systemof the Muscular System

1.1. Muscles are the motors Muscles are the motors that move body partsthat move body parts

a)a) Muscles always pull, Muscles always pull, they never pushthey never push

b)b) Pairs Pairs of skeletal of skeletal muscles workmuscles work together: together: 1 muscle 1 muscle contractscontracts while the while the other muscle other muscle relaxesrelaxes

Functions Functions of the Muscular Systemof the Muscular System

2.2. Maintain Maintain homeostasishomeostasis by by keeping body temperature keeping body temperature constantconstant

a)a) When muscles contract, When muscles contract, chemical chemical energy energy

(glucose) is converted (glucose) is converted

to to thermalthermal energy (heat) energy (heat)

When sitting, what must your thigh When sitting, what must your thigh muscles do to straighten your legs?muscles do to straighten your legs?a)a) One muscle One muscle

contracts & contracts & the other the other relaxes.relaxes.

b)b) Both musts Both musts contract.contract.

c)c) Both muscles Both muscles relax.relax.

d)d) One must pulls One must pulls on the bone & on the bone & the other pulls the other pulls on the first on the first muscle. muscle.

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Groups of MusclesGroups of Muscles1.1. VoluntaryVoluntary—you —you cancan

control thesecontrol theseArms, legs, hands, faceArms, legs, hands, face

2.2. InvoluntaryInvoluntary—you—you can’tcan’t control control these, don’t have to decide to these, don’t have to decide to

make these muscles workmake these muscles workMuscles around Muscles around heartheart

Types of Muscle TissueTypes of Muscle Tissue1.1. Skeletal Skeletal musclemuscle

a)a) Most numerous in bodyMost numerous in body

b)b) VoluntaryVoluntary

c)c) Looks Looks stripedstriped ( (striatedstriated))

d)d) Contract Contract quicklyquickly, tire , tire easilyeasily

e)e) Attached to the Attached to the bonesbones by by

tendons tendons (thick bands that (thick bands that

pullpull on the bone as the on the bone as the

muscle muscle contractscontracts))

Types of Muscle TissueTypes of Muscle Tissue2.2. Smooth Smooth musclemuscle

a)a) Found in: walls of Found in: walls of stomachstomach, , intestineintestine, , uterusuterus, etc., etc.

b)b) InvoluntaryInvoluntary

c)c) NoNo striations striations

d)d) Contracts and relaxes Contracts and relaxes slowlyslowly

Types of Muscle TissueTypes of Muscle Tissue3.3. Cardiac Cardiac musclemuscle

a)a) Only found in Only found in heartheart

b)b) InvoluntaryInvoluntary

c)c) Has Has striationsstriations

d)d) Contracts Contracts 7070 times per minute times per minute ((heartbeatheartbeat))

What attaches muscles to bones?What attaches muscles to bones?

a)a) CartilageCartilage

b)b) MusclesMuscles

c)c) TendonsTendons

d)d) LigamentsLigaments

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Which picture shows smooth Which picture shows smooth muscle?muscle?

1.

2.

3.

4.

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What type of muscle is involuntary What type of muscle is involuntary and striated?and striated?

a)a) SkeletalSkeletal

b)b) SmoothSmooth

c)c) IntestinalIntestinal

d)d) CardiacCardiac

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Which is NOT a function of the Which is NOT a function of the muscular system?muscular system?

a)a) To move your To move your body body

b)b) To help protect To help protect other organsother organs

c)c) To help digest To help digest foodfood

d)d) To help pump To help pump blood blood

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Functions of the Functions of the Integumentary SystemIntegumentary System

1.1. Forms a Forms a protective coveringprotective covering over over the bodythe body

Functions of the Functions of the Integumentary SystemIntegumentary System

1.1. Forms a protective covering over the bodyForms a protective covering over the body

2.2. Maintains Maintains homeostasishomeostasis—regulates —regulates bodybody temperaturetemperature

Functions of the Functions of the Integumentary SystemIntegumentary System

1.1. Forms a protective covering over the bodyForms a protective covering over the body

2.2. Maintains homeostasis—regulates body Maintains homeostasis—regulates body temperaturetemperature

3.3. ExcretesExcretes wasteswastes——

sodium chloride sodium chloride

(salt), water, urea(salt), water, urea

Functions of the Functions of the Integumentary SystemIntegumentary System

1.1. Forms a protective covering over the bodyForms a protective covering over the body

2.2. Maintains homeostasis—regulates body Maintains homeostasis—regulates body temperaturetemperature

3.3. Excretes wastes—Excretes wastes—

sodium chloride (salt), sodium chloride (salt),

water, ureawater, urea

4.4. Sensory Sensory organ—organ—

nerve endings are nerve endings are

sensitive to sensitive to

temperature, pressure, temperature, pressure, && touch touch

Functions of the Functions of the Integumentary SystemIntegumentary System

1.1. Forms a protective covering over the bodyForms a protective covering over the body2.2. Maintains homeostasis—regulates body Maintains homeostasis—regulates body

temperaturetemperature3.3. Excretes wastes—Excretes wastes—

sodium chloride (salt), sodium chloride (salt), water, ureawater, urea

4.4. Sensory organ—nerve Sensory organ—nerve endings are sensitive endings are sensitive to temperature, to temperature, pressure, & touchpressure, & touch

5.5. Produces Produces vitamin Dvitamin D in the in the epidermis using epidermis using sunlightsunlight

Which is NOT a function of the Which is NOT a function of the integumentary system?integumentary system?

a)a) To prevent To prevent substances from substances from entering the bodyentering the body

b)b) To help keep body To help keep body temperature temperature stablestable

c)c) To remove wastes To remove wastes from the bodyfrom the body

d)d) To absorb oxygen To absorb oxygen into the bodyinto the body

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Layers of SkinLayers of Skin1.1. Epidermis Epidermis = surface layer= surface layer

a)a) Cells on top areCells on top are dead dead

b)b) New cells New cells are are constantly constantly produced at the produced at the bottombottom

c)c) Cells produceCells produce melanin melanin (pigment that (pigment that gives you skin gives you skin color)color)

Layers of SkinLayers of Skin

2.2. Dermis Dermis = layer under epidermis= layer under epidermisa)a) ThickerThicker than epidermis than epidermis

b)b) Contains blood Contains blood

vessels, nerves, vessels, nerves,

oil and sweat oil and sweat

glandsglands

c)c) Fat cellsFat cells stored stored

under the dermisunder the dermis

Which part of the skin makes new Which part of the skin makes new skin cells?skin cells?

a)a) EpidermisEpidermis

b)b) DermisDermis

c)c) Fat cellsFat cells

d)d) Sweat glandsSweat glands

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