lets see what you already know.........
1. name the bone between your shoulder and elbow: _______________
2. name the bone between your hip and knee: _______________
3. how many bones are there in the human body (adult): _______________
4. what are the names of the two bones between the knee and ankle? _______________ and _______________
5. what are the names of the two bones between the elbow and wrist? _______________ and _______________
6. list the regions of the vertebrae and how many bones are in each of them.
7. what is the name given to the muscles on the anterior side of your thigh? _______________
8. what is the name given to the muscles on the posterior side of your thigh? _______________
9. what is your large chest muscle called? _______________
10. what is the large muscle in your lower back called? _______________
11. what is the proper name for your \calf\ muscle? _______________
12. the muscles in your body are categorized into 3 major types. what are they?
a. _______________ example: _______________
b. _______________ example: _______________
c. _______________ example: _______________
13. how many chambers are there in the human heart? _______________
14. what organelle in our cells is responsible for helping us produce energy? _______________.
15. what are the macronutrients that we eat?
a. _______________
b. _______________
c. _______________

Question

lets see what you already know.........
1. name the bone between your shoulder and elbow: _______________
2. name the bone between your hip and knee: _______________
3. how many bones are there in the human body (adult): _______________
4. what are the names of the two bones between the knee and ankle? _______________ and _______________
5. what are the names of the two bones between the elbow and wrist? _______________ and _______________
6. list the regions of the vertebrae and how many bones are in each of them.
7. what is the name given to the muscles on the anterior side of your thigh? _______________
8. what is the name given to the muscles on the posterior side of your thigh? _______________
9. what is your large chest muscle called? _______________
10. what is the large muscle in your lower back called? _______________
11. what is the proper name for your \calf\ muscle? _______________
12. the muscles in your body are categorized into 3 major types. what are they?
    a. _______________ example: _______________
    b. _______________ example: _______________
    c. _______________ example: _______________
13. how many chambers are there in the human heart? _______________
14. what organelle in our cells is responsible for helping us produce energy? _______________.
15. what are the macronutrients that we eat?
    a. _______________
    b. _______________
    c. _______________

Accepted Answer

### Question 1
# Brief Explanations:
The bone between the shoulder and elbow is the humerus, which is the long bone of the upper arm.
# Answer:
Humerus

### Question 2
# Brief Explanations:
The bone between the hip and knee is the femur, the longest and strongest bone in the human body, forming the thigh.
# Answer:
Femur

### Question 3
# Brief Explanations:
In an adult human body, the typical number of bones is 206. This includes bones of the axial (skull, spine, ribcage) and appendicular (limbs, girdles) skeletons.
# Answer:
206

### Question 4
# Brief Explanations:
Between the knee and ankle (the lower leg), the two bones are the tibia (shinbone, larger and weight - bearing) and the fibula (thinner, for support and muscle attachment).
# Answer:
Tibia; Fibula

### Question 5
# Brief Explanations:
Between the elbow and wrist (the forearm), the two bones are the radius (lateral, involved in wrist rotation) and the ulna (medial, forms the elbow joint with the humerus).
# Answer:
Radius; Ulna

### Question 6
# Brief Explanations:
The vertebrae are divided into three main regions:
- Cervical: Located in the neck, there are 7 cervical vertebrae (C1 - C7). They support the head and allow for neck movement.
- Thoracic: Attached to the ribcage, there are 12 thoracic vertebrae (T1 - T12). They provide stability for the chest cavity and protect the heart and lungs.
- Lumbar: In the lower back, there are 5 lumbar vertebrae (L1 - L5). They bear most of the body's weight and allow for bending and twisting of the lower back.
Additionally, there are the sacrum (formed by 5 fused vertebrae) and the coccyx (formed by 3 - 5 fused vertebrae), but the main regions with distinct, non - fused vertebrae in adults are cervical, thoracic, and lumbar.
# Answer:
- Cervical: 7 bones
- Thoracic: 12 bones
- Lumbar: 5 bones
- Sacrum: 5 fused bones (sometimes considered a region)
- Coccyx: 3 - 5 fused bones (sometimes considered a region)

### Question 7
# Brief Explanations:
The muscles on the anterior (front) side of the thigh are the quadriceps femoris. This group includes the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius, and they are responsible for extending the knee.
# Answer:
Quadriceps femoris

### Question 8
# Brief Explanations:
The muscles on the posterior (back) side of the thigh are the hamstrings. This group includes the biceps femoris, semitendinosus, and semimembranosus, and they are responsible for flexing the knee and extending the hip.
# Answer:
Hamstrings

### Question 9
# Brief Explanations:
The large chest muscle is the pectoralis major. It is a thick, fan - shaped muscle that covers the upper chest and is responsible for movements like adduction and flexion of the arm at the shoulder joint.
# Answer:
Pectoralis major

### Question 10
# Brief Explanations:
The large muscle in the lower back is the erector spinae. This group of muscles helps in extending and laterally flexing the spine, as well as maintaining an upright posture.
# Answer:
Erector spinae

### Question 11
# Brief Explanations:
The proper name for the "calf" muscle is the gastrocnemius (along with the soleus, but the gastrocnemius is the more visible, superficial calf muscle). The gastrocnemius is responsible for plantar flexion of the foot (pointing the toe) and knee flexion.
# Answer:
Gastrocnemius (and Soleus, but gastrocnemius is the main visible calf muscle)

### Question 12
# Brief Explanations:
The three major types of muscles in the body are:
- Skeletal muscle: Attached to bones, under voluntary control, and responsible for body movement (e.g., biceps brachii, which moves the arm).
- Smooth muscle: Found in the walls of internal organs (like the stomach, intestines, blood vessels), under involuntary control, and responsible for functions like peristalsis (e.g., muscle in the small intestine).
- Cardiac muscle: Found only in the heart, involuntary, and responsible for pumping blood (the heart muscle itself).
# Answer:
a. Skeletal muscle; Example: Biceps brachii
b. Smooth muscle; Example: Muscle in the small intestine
c. Cardiac muscle; Example: Heart muscle

### Question 13
# Brief Explanations:
The human heart has 4 chambers: two atria (right atrium and left atrium) and two ventricles (right ventricle and left ventricle). The atria receive blood, and the ventricles pump blood out of the heart.
# Answer:
4

### Question 14
# Brief Explanations:
The mitochondrion (plural: mitochondria) is the organelle in cells responsible for producing energy. It is often called the "powerhouse of the cell" as it generates ATP (adenosine triphosphate) through cellular respiration.
# Answer:
Mitochondrion

### Question 15
# Brief Explanations:
The macronutrients we eat are:
- Carbohydrates: Provide energy (e.g., sugars, starches from grains, fruits, vegetables).
- Proteins: Essential for growth, repair, and maintenance of body tissues (e.g., meat, fish, beans, nuts).
- Fats: Provide energy, insulate the body, and help absorb fat - soluble vitamins (e.g., oils, butter, avocados).
# Answer:
a. Carbohydrates
b. Proteins
c. Fats

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