Embedded Files
Top 10 facts about muscles:
Muscles make up almost half of how much we weigh.
There are about 640 muscles in the human body. The most important one is the heart.
There are three different kinds of muscles – skeletal, smooth [ˈsmuːð] and cardiac.
Involuntary muscles like the heart move without us thinking about it.
Voluntary muscles are found in places like our arms and legs – we decide when we want to move them.
Muscles are attached to bones with tendons.
If one of your tendons accidently gets pulled*1, it’s called a sprain*2.
The largest muscle is called the gluteus ['ɡlʊtiːəs] maximus, in your bottom. It helps you walk.
Muscles are mostly water – about 75%.
Moving a muscle involves contracting it (pulling it) and relaxing it (letting it rest).
*1 distendido
*2 esguince, torcedura
Human Skeleton
The human skeleton consists of 206 bones. We are actually born with more bones (about 300), but many fuse together as a child grows up. These bones support your body and allow you to move. Bones contain a lot of calcium (an element found in milk, broccoli, and other foods). Bones manufacture blood [ˈblʌd] cells and store important minerals. The longest bone in our bodies is the femur [ˈfiːmər](thigh bone). The smallest bone is the stirrup bone inside the ear. Each hand has 26 bones in it. Your nose and ears are not made of bone; they are made of cartilage [ˈkɑːrtɪlɪdʒ], a flexible substance that is not as hard as bone.
Joints: Bones are connected to other bones at joints. There are many different types of joints, including: fixed joints (such as in the skull, which consists of many bones), hinged joints (such as in the fingers and toes), and ball-and-socket joints (such as the shoulders and hips).
Differences in males and females: Males and females have slightly different skeletons, including a different elbow angle. Males have slightly thicker and longer legs and arms; females have a wider pelvis and a larger space within the pelvis, through which babies travel when they are born.
buttoks [ˈbʌtəks] nalga
thigh [ˈθaɪ] muslo
groin [ˈgrɔɪn] ingle
instep [ˈɪnstɛp] empeine
navel [ˈneɪvəl] ombligo
nipple [ˈnɪpəl] pezón
chin [ˈtʃɪn] mentón, barbilla
armpit [ˈɑːrmpɪt] axila
wrist [ˈrɪst] muñeca
waist [ˈweɪst] cintura
breast [ˈbrɛst] pecho
trunk [ˈtrʌŋk] tronco, torso
Activity 1
Identify parts of the body, bones and muscles.
Game: Skip the Word.
Muscle groups
Muscle groups
There are three types of muscles in your body: cardiac, smooth, and skeletal. Cardiac muscles are the muscles that control your heart. Smooth muscles control involuntary functions like constricting your blood vessels. Skeletal muscles are the muscles that you target in the gym that help your body move. They make up about 40 percentTrusted Source of your body weight.
Many fitness experts often consider these to be the major muscle groups in your body:
Some people also divide these muscle groups into more specific categories such as:
calves (lower leg)
hamstrings (back of upper leg)
quadriceps (front of upper leg)
glutes (butt and hips)
biceps (front of upper arms)
triceps (back of upper arms)
forearms (lower arm)
trapezius (traps) (top of shoulders)
latissimus dorsi (lats) (under the armpits)
Strength and resistance training exercise is one of the four types of exercise along with endurance, balance and flexibility. Ideally, all four types of exercise would be included in a healthy workout routine and AHA provides easy to follow guidelines for endurance and strength-training in its Recommendations for Physical Activity in Adults.
They don’t all need to be done every day, but variety helps keep the body fit and healthy, and makes exercise interesting. You can do a variety of exercises to keep the body fit and healthy and to keep your physical activity routine exciting.
The American Heart Association recommends strength training at least twice per week.
Strengthening your muscles gives you the ability to perform everyday activities and helps protect your body from injury. Stronger muscles also lead to a boost in your metabolic rate, which means you’ll burn more calories even when your body is at rest.
Don’t worry -- we’re not talking about professional bodybuilding. Simple, weight- bearing exercises that use free weights, machines or your body’s own resistance are the focus. You can do these workouts separate from your cardio activity or add resistance on to an existing workout. Choose the time and type of activity that works for you.
End of Unit 1.
https://www.theschoolrun.com/homework-help/bones-and-muscles
https://www.self.com/gallery/essential-stretches-slideshow
ACTIVITIES
PLAYING WITH MUSCLES
SCIENCE QUIZ https://online.seterra.com/en-an/vgp/3811
https://meet.google.com/lookup/hezdiymo7k
Page updated
Report abuse