Levers Lab: What do you notice about the shape of your shoulder muscle? What do you think this indicates?
Let's start from the top- numerous muscles work in synergy for free movement of our shoulder, each in charge of different directions of rotations. The deltoid- This muscle is primarily responsible for giving your shoulder that rounded shape that it has. It stabilizes and moves the shoulder and arm. The deltoid is the main abductor muscle of the shoulder, meaning it moves the arm away from the center of the body. The deltoid has three origin points along the scapula and the clavicle - these bones below: The origin points are stable and do not move, unlike the insertion point of the muscle, below, which moves the humerus bone of the upper arm. The antagonist (or opposing muscle) to the deltoid is the pectoralis major. This muscle is located on the upper chest area and is kind of fan-like in shape. Similar to the deltoid, the pectoralis major has multiple origin points, but just one insertion point. The origin points are below, along the clavicle, sternum, and abdomen, while the insertion point is on the humerus. As the pectoralis major is in the opposite of the deltoid, its function is to adduct the arm, moving it closer to the center of the body.
Levers Lab: What do you notice about the shape of your shoulder muscle? What do you...
1. What did you notice about the shapes with and without the lone pairs? how do the lone lairs affect the final shape? Guidelines for Drawing Lewis Structures. STEP 1: Determine the total number of valence electrons for the molecule. STEP 2: Determine the skeletal structure arrangement of atoms) of the compound. For simple compounds the singular atom will be in the center with the others arranged around it. STEP 3: Attach each bonded atom to the central atom with...
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When you hold your arm outstretched, it's supported primarily by the deltoid muscle. The given figure shows a case in which the deltoid exerts a 67 N force at 15 degrees to the horizontal. If the force-application point is 18 cm horizontally from the shoulder joint, what torque does the deltoid exert about the shoulder?
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what do you notice about the location of lithium, strontium and calcium refer to the periodic table
Do not worry about lab observations. Please help. HOMEWORK FOR LAB 10 ELECTROMAGNETISM 1. In the diagram on the right, a wire is car- a cureent. The magnetic field above wire is into the paper and the mag netic field below the wire is out of the as shown. (An x indicates a field and a. indicates a field line out of the paper) What is the direc- tion of current flow in the wirne? Explain your answer based on...
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